Home / 20,737.90-28,618.30-11,306.46

Finding the Fourth Proportional to 20,737.90, 28,618.30 and 11,306.46

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Solution

The fourth proportional to 20,737.90, 28,618.30 and 11,306.46 is: 15,602.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.90 : 28,618.30 = 11,306.46 : x
  2. Step 2: Convert to fraction form
    20,737.90/28,618.30 = 11,306.46/x
  3. Step 3: Cross multiply
    20,737.90x = 28,618.30 × 11,306.46
  4. Step 4: Simplify right side
    20,737.90x = 323,571,664.22
  5. Step 5: Solve for x
    x = 323,571,664.22/20,737.90
  6. Step 6: Final answer
    x = 15,602.91

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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.