Home / 40,001.60-59,997.12-10,421.44

Finding the Fourth Proportional to 40,001.60, 59,997.12 and 10,421.44

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Solution

The fourth proportional to 40,001.60, 59,997.12 and 10,421.44 is: 15,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,001.60 : 59,997.12 = 10,421.44 : x
  2. Step 2: Convert to fraction form
    40,001.60/59,997.12 = 10,421.44/x
  3. Step 3: Cross multiply
    40,001.60x = 59,997.12 × 10,421.44
  4. Step 4: Simplify right side
    40,001.60x = 625,256,386.25
  5. Step 5: Solve for x
    x = 625,256,386.25/40,001.60
  6. Step 6: Final answer
    x = 15,630.78

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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.