Home / 42,608.16-63,899.28-20,410.08

Finding the Fourth Proportional to 42,608.16, 63,899.28 and 20,410.08

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Solution

The fourth proportional to 42,608.16, 63,899.28 and 20,410.08 is: 30,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,608.16 : 63,899.28 = 20,410.08 : x
  2. Step 2: Convert to fraction form
    42,608.16/63,899.28 = 20,410.08/x
  3. Step 3: Cross multiply
    42,608.16x = 63,899.28 × 20,410.08
  4. Step 4: Simplify right side
    42,608.16x = 1,304,189,416.74
  5. Step 5: Solve for x
    x = 1,304,189,416.74/42,608.16
  6. Step 6: Final answer
    x = 30,608.91

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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.