Home / 25,743.90-35,531.20-15,134.08

Finding the Fourth Proportional to 25,743.90, 35,531.20 and 15,134.08

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Solution

The fourth proportional to 25,743.90, 35,531.20 and 15,134.08 is: 20,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,743.90 : 35,531.20 = 15,134.08 : x
  2. Step 2: Convert to fraction form
    25,743.90/35,531.20 = 15,134.08/x
  3. Step 3: Cross multiply
    25,743.90x = 35,531.20 × 15,134.08
  4. Step 4: Simplify right side
    25,743.90x = 537,732,023.30
  5. Step 5: Solve for x
    x = 537,732,023.30/25,743.90
  6. Step 6: Final answer
    x = 20,887.75

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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.