Home / 20,680.34-28,526.07-18,034.10

Finding the Fourth Proportional to 20,680.34, 28,526.07 and 18,034.10

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Solution

The fourth proportional to 20,680.34, 28,526.07 and 18,034.10 is: 24,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.34 : 28,526.07 = 18,034.10 : x
  2. Step 2: Convert to fraction form
    20,680.34/28,526.07 = 18,034.10/x
  3. Step 3: Cross multiply
    20,680.34x = 28,526.07 × 18,034.10
  4. Step 4: Simplify right side
    20,680.34x = 514,441,998.99
  5. Step 5: Solve for x
    x = 514,441,998.99/20,680.34
  6. Step 6: Final answer
    x = 24,875.90

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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.