Home / 42,922.91-64,384.07-13,340.70

Finding the Fourth Proportional to 42,922.91, 64,384.07 and 13,340.70

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Solution

The fourth proportional to 42,922.91, 64,384.07 and 13,340.70 is: 20,010.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,922.91 : 64,384.07 = 13,340.70 : x
  2. Step 2: Convert to fraction form
    42,922.91/64,384.07 = 13,340.70/x
  3. Step 3: Cross multiply
    42,922.91x = 64,384.07 × 13,340.70
  4. Step 4: Simplify right side
    42,922.91x = 858,928,495.95
  5. Step 5: Solve for x
    x = 858,928,495.95/42,922.91
  6. Step 6: Final answer
    x = 20,010.96

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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.