Home / 32,211.76-44,411.08-20,861.20

Finding the Fourth Proportional to 32,211.76, 44,411.08 and 20,861.20

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Solution

The fourth proportional to 32,211.76, 44,411.08 and 20,861.20 is: 28,761.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,211.76 : 44,411.08 = 20,861.20 : x
  2. Step 2: Convert to fraction form
    32,211.76/44,411.08 = 20,861.20/x
  3. Step 3: Cross multiply
    32,211.76x = 44,411.08 × 20,861.20
  4. Step 4: Simplify right side
    32,211.76x = 926,468,422.10
  5. Step 5: Solve for x
    x = 926,468,422.10/32,211.76
  6. Step 6: Final answer
    x = 28,761.81

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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.