Home / 25,022.31-34,530.26-13,691.76

Finding the Fourth Proportional to 25,022.31, 34,530.26 and 13,691.76

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Solution

The fourth proportional to 25,022.31, 34,530.26 and 13,691.76 is: 18,894.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,022.31 : 34,530.26 = 13,691.76 : x
  2. Step 2: Convert to fraction form
    25,022.31/34,530.26 = 13,691.76/x
  3. Step 3: Cross multiply
    25,022.31x = 34,530.26 × 13,691.76
  4. Step 4: Simplify right side
    25,022.31x = 472,779,964.20
  5. Step 5: Solve for x
    x = 472,779,964.20/25,022.31
  6. Step 6: Final answer
    x = 18,894.34

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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.