Home / 25,731.15-35,497.71-15,115.99

Finding the Fourth Proportional to 25,731.15, 35,497.71 and 15,115.99

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Solution

The fourth proportional to 25,731.15, 35,497.71 and 15,115.99 is: 20,853.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.15 : 35,497.71 = 15,115.99 : x
  2. Step 2: Convert to fraction form
    25,731.15/35,497.71 = 15,115.99/x
  3. Step 3: Cross multiply
    25,731.15x = 35,497.71 × 15,115.99
  4. Step 4: Simplify right side
    25,731.15x = 536,583,029.38
  5. Step 5: Solve for x
    x = 536,583,029.38/25,731.15
  6. Step 6: Final answer
    x = 20,853.44

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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.