Home / 38,720.95-58,081.83-16,520.47

Finding the Fourth Proportional to 38,720.95, 58,081.83 and 16,520.47

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Solution

The fourth proportional to 38,720.95, 58,081.83 and 16,520.47 is: 24,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,720.95 : 58,081.83 = 16,520.47 : x
  2. Step 2: Convert to fraction form
    38,720.95/58,081.83 = 16,520.47/x
  3. Step 3: Cross multiply
    38,720.95x = 58,081.83 × 16,520.47
  4. Step 4: Simplify right side
    38,720.95x = 959,539,130.06
  5. Step 5: Solve for x
    x = 959,539,130.06/38,720.95
  6. Step 6: Final answer
    x = 24,780.88

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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.