Home / 25,158.80-34,721.08-15,087.62

Finding the Fourth Proportional to 25,158.80, 34,721.08 and 15,087.62

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Solution

The fourth proportional to 25,158.80, 34,721.08 and 15,087.62 is: 20,822.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,158.80 : 34,721.08 = 15,087.62 : x
  2. Step 2: Convert to fraction form
    25,158.80/34,721.08 = 15,087.62/x
  3. Step 3: Cross multiply
    25,158.80x = 34,721.08 × 15,087.62
  4. Step 4: Simplify right side
    25,158.80x = 523,858,461.03
  5. Step 5: Solve for x
    x = 523,858,461.03/25,158.80
  6. Step 6: Final answer
    x = 20,822.08

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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.