Home / 28,212.51-38,933.01-15,466.42

Finding the Fourth Proportional to 28,212.51, 38,933.01 and 15,466.42

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Solution

The fourth proportional to 28,212.51, 38,933.01 and 15,466.42 is: 21,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,212.51 : 38,933.01 = 15,466.42 : x
  2. Step 2: Convert to fraction form
    28,212.51/38,933.01 = 15,466.42/x
  3. Step 3: Cross multiply
    28,212.51x = 38,933.01 × 15,466.42
  4. Step 4: Simplify right side
    28,212.51x = 602,154,187.19
  5. Step 5: Solve for x
    x = 602,154,187.19/28,212.51
  6. Step 6: Final answer
    x = 21,343.52

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.