Home / 25,115.17-34,658.79-13,784.38

Finding the Fourth Proportional to 25,115.17, 34,658.79 and 13,784.38

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Solution

The fourth proportional to 25,115.17, 34,658.79 and 13,784.38 is: 19,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.17 : 34,658.79 = 13,784.38 : x
  2. Step 2: Convert to fraction form
    25,115.17/34,658.79 = 13,784.38/x
  3. Step 3: Cross multiply
    25,115.17x = 34,658.79 × 13,784.38
  4. Step 4: Simplify right side
    25,115.17x = 477,749,931.70
  5. Step 5: Solve for x
    x = 477,749,931.70/25,115.17
  6. Step 6: Final answer
    x = 19,022.37

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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.