Home / 28,621.38-39,492.45-17,287.86

Finding the Fourth Proportional to 28,621.38, 39,492.45 and 17,287.86

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Solution

The fourth proportional to 28,621.38, 39,492.45 and 17,287.86 is: 23,854.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.38 : 39,492.45 = 17,287.86 : x
  2. Step 2: Convert to fraction form
    28,621.38/39,492.45 = 17,287.86/x
  3. Step 3: Cross multiply
    28,621.38x = 39,492.45 × 17,287.86
  4. Step 4: Simplify right side
    28,621.38x = 682,739,946.66
  5. Step 5: Solve for x
    x = 682,739,946.66/28,621.38
  6. Step 6: Final answer
    x = 23,854.19

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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.