Home / 20,680.84-28,526.76-18,034.60

Finding the Fourth Proportional to 20,680.84, 28,526.76 and 18,034.60

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Solution

The fourth proportional to 20,680.84, 28,526.76 and 18,034.60 is: 24,876.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.84 : 28,526.76 = 18,034.60 : x
  2. Step 2: Convert to fraction form
    20,680.84/28,526.76 = 18,034.60/x
  3. Step 3: Cross multiply
    20,680.84x = 28,526.76 × 18,034.60
  4. Step 4: Simplify right side
    20,680.84x = 514,468,705.90
  5. Step 5: Solve for x
    x = 514,468,705.90/20,680.84
  6. Step 6: Final answer
    x = 24,876.59

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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.