Home / 25,155.80-34,715.83-13,825.70

Finding the Fourth Proportional to 25,155.80, 34,715.83 and 13,825.70

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Solution

The fourth proportional to 25,155.80, 34,715.83 and 13,825.70 is: 19,079.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,155.80 : 34,715.83 = 13,825.70 : x
  2. Step 2: Convert to fraction form
    25,155.80/34,715.83 = 13,825.70/x
  3. Step 3: Cross multiply
    25,155.80x = 34,715.83 × 13,825.70
  4. Step 4: Simplify right side
    25,155.80x = 479,970,442.69
  5. Step 5: Solve for x
    x = 479,970,442.69/25,155.80
  6. Step 6: Final answer
    x = 19,079.92

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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.