Home / 25,103.19-34,639.83-15,031.38

Finding the Fourth Proportional to 25,103.19, 34,639.83 and 15,031.38

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Solution

The fourth proportional to 25,103.19, 34,639.83 and 15,031.38 is: 20,741.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,103.19 : 34,639.83 = 15,031.38 : x
  2. Step 2: Convert to fraction form
    25,103.19/34,639.83 = 15,031.38/x
  3. Step 3: Cross multiply
    25,103.19x = 34,639.83 × 15,031.38
  4. Step 4: Simplify right side
    25,103.19x = 520,684,447.87
  5. Step 5: Solve for x
    x = 520,684,447.87/25,103.19
  6. Step 6: Final answer
    x = 20,741.76

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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.