Home / 32,429.85-44,708.72-20,487.21

Finding the Fourth Proportional to 32,429.85, 44,708.72 and 20,487.21

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Solution

The fourth proportional to 32,429.85, 44,708.72 and 20,487.21 is: 28,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,429.85 : 44,708.72 = 20,487.21 : x
  2. Step 2: Convert to fraction form
    32,429.85/44,708.72 = 20,487.21/x
  3. Step 3: Cross multiply
    32,429.85x = 44,708.72 × 20,487.21
  4. Step 4: Simplify right side
    32,429.85x = 915,956,833.04
  5. Step 5: Solve for x
    x = 915,956,833.04/32,429.85
  6. Step 6: Final answer
    x = 28,244.25

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Double scale
Find fourth proportional to 32,430.85, 44,710.09 and 20,488.21
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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.