Home / 20,402.08-28,152.84-12,446.26

Finding the Fourth Proportional to 20,402.08, 28,152.84 and 12,446.26

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Solution

The fourth proportional to 20,402.08, 28,152.84 and 12,446.26 is: 17,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402.08 : 28,152.84 = 12,446.26 : x
  2. Step 2: Convert to fraction form
    20,402.08/28,152.84 = 12,446.26/x
  3. Step 3: Cross multiply
    20,402.08x = 28,152.84 × 12,446.26
  4. Step 4: Simplify right side
    20,402.08x = 350,397,566.38
  5. Step 5: Solve for x
    x = 350,397,566.38/20,402.08
  6. Step 6: Final answer
    x = 17,174.60

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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.