Home / 42,965.65-64,440.14-21,612.68

Finding the Fourth Proportional to 42,965.65, 64,440.14 and 21,612.68

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Solution

The fourth proportional to 42,965.65, 64,440.14 and 21,612.68 is: 32,414.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,965.65 : 64,440.14 = 21,612.68 : x
  2. Step 2: Convert to fraction form
    42,965.65/64,440.14 = 21,612.68/x
  3. Step 3: Cross multiply
    42,965.65x = 64,440.14 × 21,612.68
  4. Step 4: Simplify right side
    42,965.65x = 1,392,723,694.71
  5. Step 5: Solve for x
    x = 1,392,723,694.71/42,965.65
  6. Step 6: Final answer
    x = 32,414.82

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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.