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Finding the Fourth Proportional to 43,411.52, 65,117.28 and 13,829.44

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Solution

The fourth proportional to 43,411.52, 65,117.28 and 13,829.44 is: 20,744.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,411.52 : 65,117.28 = 13,829.44 : x
  2. Step 2: Convert to fraction form
    43,411.52/65,117.28 = 13,829.44/x
  3. Step 3: Cross multiply
    43,411.52x = 65,117.28 × 13,829.44
  4. Step 4: Simplify right side
    43,411.52x = 900,535,516.72
  5. Step 5: Solve for x
    x = 900,535,516.72/43,411.52
  6. Step 6: Final answer
    x = 20,744.16

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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.