Home / 25,023.67-34,531.17-13,690.91

Finding the Fourth Proportional to 25,023.67, 34,531.17 and 13,690.91

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Solution

The fourth proportional to 25,023.67, 34,531.17 and 13,690.91 is: 18,892.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,023.67 : 34,531.17 = 13,690.91 : x
  2. Step 2: Convert to fraction form
    25,023.67/34,531.17 = 13,690.91/x
  3. Step 3: Cross multiply
    25,023.67x = 34,531.17 × 13,690.91
  4. Step 4: Simplify right side
    25,023.67x = 472,763,088.56
  5. Step 5: Solve for x
    x = 472,763,088.56/25,023.67
  6. Step 6: Final answer
    x = 18,892.64

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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.