Home / 43,438.60-65,159.12-15,354.69

Finding the Fourth Proportional to 43,438.60, 65,159.12 and 15,354.69

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Solution

The fourth proportional to 43,438.60, 65,159.12 and 15,354.69 is: 23,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,438.60 : 65,159.12 = 15,354.69 : x
  2. Step 2: Convert to fraction form
    43,438.60/65,159.12 = 15,354.69/x
  3. Step 3: Cross multiply
    43,438.60x = 65,159.12 × 15,354.69
  4. Step 4: Simplify right side
    43,438.60x = 1,000,498,088.27
  5. Step 5: Solve for x
    x = 1,000,498,088.27/43,438.60
  6. Step 6: Final answer
    x = 23,032.47

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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.