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Finding the Fourth Proportional to 42,001.40, 63,002.10 and 17,053.40

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Solution

The fourth proportional to 42,001.40, 63,002.10 and 17,053.40 is: 25,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,001.40 : 63,002.10 = 17,053.40 : x
  2. Step 2: Convert to fraction form
    42,001.40/63,002.10 = 17,053.40/x
  3. Step 3: Cross multiply
    42,001.40x = 63,002.10 × 17,053.40
  4. Step 4: Simplify right side
    42,001.40x = 1,074,400,012.14
  5. Step 5: Solve for x
    x = 1,074,400,012.14/42,001.40
  6. Step 6: Final answer
    x = 25,580.10

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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.