Home / 28,652.68-39,565.91-17,915.95

Finding the Fourth Proportional to 28,652.68, 39,565.91 and 17,915.95

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Solution

The fourth proportional to 28,652.68, 39,565.91 and 17,915.95 is: 24,739.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.68 : 39,565.91 = 17,915.95 : x
  2. Step 2: Convert to fraction form
    28,652.68/39,565.91 = 17,915.95/x
  3. Step 3: Cross multiply
    28,652.68x = 39,565.91 × 17,915.95
  4. Step 4: Simplify right side
    28,652.68x = 708,860,577.86
  5. Step 5: Solve for x
    x = 708,860,577.86/28,652.68
  6. Step 6: Final answer
    x = 24,739.77

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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.