Home / 43,002.39-64,487.18-20,509.10

Finding the Fourth Proportional to 43,002.39, 64,487.18 and 20,509.10

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Solution

The fourth proportional to 43,002.39, 64,487.18 and 20,509.10 is: 30,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,002.39 : 64,487.18 = 20,509.10 : x
  2. Step 2: Convert to fraction form
    43,002.39/64,487.18 = 20,509.10/x
  3. Step 3: Cross multiply
    43,002.39x = 64,487.18 × 20,509.10
  4. Step 4: Simplify right side
    43,002.39x = 1,322,573,752.17
  5. Step 5: Solve for x
    x = 1,322,573,752.17/43,002.39
  6. Step 6: Final answer
    x = 30,755.82

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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.