Home / 28,126.44-38,814.39-15,551.19

Finding the Fourth Proportional to 28,126.44, 38,814.39 and 15,551.19

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Solution

The fourth proportional to 28,126.44, 38,814.39 and 15,551.19 is: 21,460.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.44 : 38,814.39 = 15,551.19 : x
  2. Step 2: Convert to fraction form
    28,126.44/38,814.39 = 15,551.19/x
  3. Step 3: Cross multiply
    28,126.44x = 38,814.39 × 15,551.19
  4. Step 4: Simplify right side
    28,126.44x = 603,609,953.62
  5. Step 5: Solve for x
    x = 603,609,953.62/28,126.44
  6. Step 6: Final answer
    x = 21,460.59

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Half scale
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Double scale
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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.