Home / 25,713.38-35,488.24-15,639.87

Finding the Fourth Proportional to 25,713.38, 35,488.24 and 15,639.87

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Solution

The fourth proportional to 25,713.38, 35,488.24 and 15,639.87 is: 21,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,713.38 : 35,488.24 = 15,639.87 : x
  2. Step 2: Convert to fraction form
    25,713.38/35,488.24 = 15,639.87/x
  3. Step 3: Cross multiply
    25,713.38x = 35,488.24 × 15,639.87
  4. Step 4: Simplify right side
    25,713.38x = 555,031,442.46
  5. Step 5: Solve for x
    x = 555,031,442.46/25,713.38
  6. Step 6: Final answer
    x = 21,585.31

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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.