Home / 25,135.69-34,687.61-13,806.21

Finding the Fourth Proportional to 25,135.69, 34,687.61 and 13,806.21

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Solution

The fourth proportional to 25,135.69, 34,687.61 and 13,806.21 is: 19,052.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,135.69 : 34,687.61 = 13,806.21 : x
  2. Step 2: Convert to fraction form
    25,135.69/34,687.61 = 13,806.21/x
  3. Step 3: Cross multiply
    25,135.69x = 34,687.61 × 13,806.21
  4. Step 4: Simplify right side
    25,135.69x = 478,904,428.06
  5. Step 5: Solve for x
    x = 478,904,428.06/25,135.69
  6. Step 6: Final answer
    x = 19,052.77

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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.