Home / 42,179.32-63,229.84-20,003.08

Finding the Fourth Proportional to 42,179.32, 63,229.84 and 20,003.08

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Solution

The fourth proportional to 42,179.32, 63,229.84 and 20,003.08 is: 29,986.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,179.32 : 63,229.84 = 20,003.08 : x
  2. Step 2: Convert to fraction form
    42,179.32/63,229.84 = 20,003.08/x
  3. Step 3: Cross multiply
    42,179.32x = 63,229.84 × 20,003.08
  4. Step 4: Simplify right side
    42,179.32x = 1,264,791,547.91
  5. Step 5: Solve for x
    x = 1,264,791,547.91/42,179.32
  6. Step 6: Final answer
    x = 29,986.06

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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.