Home / 37,398.12-51,609.24-20,402.10

Finding the Fourth Proportional to 37,398.12, 51,609.24 and 20,402.10

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Solution

The fourth proportional to 37,398.12, 51,609.24 and 20,402.10 is: 28,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,398.12 : 51,609.24 = 20,402.10 : x
  2. Step 2: Convert to fraction form
    37,398.12/51,609.24 = 20,402.10/x
  3. Step 3: Cross multiply
    37,398.12x = 51,609.24 × 20,402.10
  4. Step 4: Simplify right side
    37,398.12x = 1,052,936,875.40
  5. Step 5: Solve for x
    x = 1,052,936,875.40/37,398.12
  6. Step 6: Final answer
    x = 28,154.81

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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.