Home / 28,842.48-43,263.47-9,121.05

Finding the Fourth Proportional to 28,842.48, 43,263.47 and 9,121.05

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Solution

The fourth proportional to 28,842.48, 43,263.47 and 9,121.05 is: 13,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,842.48 : 43,263.47 = 9,121.05 : x
  2. Step 2: Convert to fraction form
    28,842.48/43,263.47 = 9,121.05/x
  3. Step 3: Cross multiply
    28,842.48x = 43,263.47 × 9,121.05
  4. Step 4: Simplify right side
    28,842.48x = 394,608,227.44
  5. Step 5: Solve for x
    x = 394,608,227.44/28,842.48
  6. Step 6: Final answer
    x = 13,681.49

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.