Home / 32,480.78-44,822.18-20,387.70

Finding the Fourth Proportional to 32,480.78, 44,822.18 and 20,387.70

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Solution

The fourth proportional to 32,480.78, 44,822.18 and 20,387.70 is: 28,134.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,480.78 : 44,822.18 = 20,387.70 : x
  2. Step 2: Convert to fraction form
    32,480.78/44,822.18 = 20,387.70/x
  3. Step 3: Cross multiply
    32,480.78x = 44,822.18 × 20,387.70
  4. Step 4: Simplify right side
    32,480.78x = 913,821,210.16
  5. Step 5: Solve for x
    x = 913,821,210.16/32,480.78
  6. Step 6: Final answer
    x = 28,134.22

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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.