Home / 42,346.16-63,508.16-20,115.32

Finding the Fourth Proportional to 42,346.16, 63,508.16 and 20,115.32

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Solution

The fourth proportional to 42,346.16, 63,508.16 and 20,115.32 is: 30,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,346.16 : 63,508.16 = 20,115.32 : x
  2. Step 2: Convert to fraction form
    42,346.16/63,508.16 = 20,115.32/x
  3. Step 3: Cross multiply
    42,346.16x = 63,508.16 × 20,115.32
  4. Step 4: Simplify right side
    42,346.16x = 1,277,486,961.01
  5. Step 5: Solve for x
    x = 1,277,486,961.01/42,346.16
  6. Step 6: Final answer
    x = 30,167.72

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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.