Home / 20,323.76-28,044.11-11,370.29

Finding the Fourth Proportional to 20,323.76, 28,044.11 and 11,370.29

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Solution

The fourth proportional to 20,323.76, 28,044.11 and 11,370.29 is: 15,689.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.76 : 28,044.11 = 11,370.29 : x
  2. Step 2: Convert to fraction form
    20,323.76/28,044.11 = 11,370.29/x
  3. Step 3: Cross multiply
    20,323.76x = 28,044.11 × 11,370.29
  4. Step 4: Simplify right side
    20,323.76x = 318,869,606.64
  5. Step 5: Solve for x
    x = 318,869,606.64/20,323.76
  6. Step 6: Final answer
    x = 15,689.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.