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Finding the Fourth Proportional to 28,042, 38,697.96 and 15,466.75

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Solution

The fourth proportional to 28,042, 38,697.96 and 15,466.75 is: 21,344.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042 : 38,697.96 = 15,466.75 : x
  2. Step 2: Convert to fraction form
    28,042/38,697.96 = 15,466.75/x
  3. Step 3: Cross multiply
    28,042x = 38,697.96 × 15,466.75
  4. Step 4: Simplify right side
    28,042x = 598,531,672.83
  5. Step 5: Solve for x
    x = 598,531,672.83/28,042
  6. Step 6: Final answer
    x = 21,344.12

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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.