Home / 25,338.17-34,979.15-15,911.93

Finding the Fourth Proportional to 25,338.17, 34,979.15 and 15,911.93

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Solution

The fourth proportional to 25,338.17, 34,979.15 and 15,911.93 is: 21,966.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,338.17 : 34,979.15 = 15,911.93 : x
  2. Step 2: Convert to fraction form
    25,338.17/34,979.15 = 15,911.93/x
  3. Step 3: Cross multiply
    25,338.17x = 34,979.15 × 15,911.93
  4. Step 4: Simplify right side
    25,338.17x = 556,585,706.70
  5. Step 5: Solve for x
    x = 556,585,706.70/25,338.17
  6. Step 6: Final answer
    x = 21,966.29

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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.