Home / 42,421.60-63,608.14-17,478.86

Finding the Fourth Proportional to 42,421.60, 63,608.14 and 17,478.86

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Solution

The fourth proportional to 42,421.60, 63,608.14 and 17,478.86 is: 26,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,421.60 : 63,608.14 = 17,478.86 : x
  2. Step 2: Convert to fraction form
    42,421.60/63,608.14 = 17,478.86/x
  3. Step 3: Cross multiply
    42,421.60x = 63,608.14 × 17,478.86
  4. Step 4: Simplify right side
    42,421.60x = 1,111,797,773.92
  5. Step 5: Solve for x
    x = 1,111,797,773.92/42,421.60
  6. Step 6: Final answer
    x = 26,208.29

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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.