Home / 28,634.60-42,964.70-13,044.20

Finding the Fourth Proportional to 28,634.60, 42,964.70 and 13,044.20

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Solution

The fourth proportional to 28,634.60, 42,964.70 and 13,044.20 is: 19,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.60 : 42,964.70 = 13,044.20 : x
  2. Step 2: Convert to fraction form
    28,634.60/42,964.70 = 13,044.20/x
  3. Step 3: Cross multiply
    28,634.60x = 42,964.70 × 13,044.20
  4. Step 4: Simplify right side
    28,634.60x = 560,440,139.74
  5. Step 5: Solve for x
    x = 560,440,139.74/28,634.60
  6. Step 6: Final answer
    x = 19,572.13

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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.