Home / 25,331.78-38,013.99-13,653.14

Finding the Fourth Proportional to 25,331.78, 38,013.99 and 13,653.14

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Solution

The fourth proportional to 25,331.78, 38,013.99 and 13,653.14 is: 20,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,331.78 : 38,013.99 = 13,653.14 : x
  2. Step 2: Convert to fraction form
    25,331.78/38,013.99 = 13,653.14/x
  3. Step 3: Cross multiply
    25,331.78x = 38,013.99 × 13,653.14
  4. Step 4: Simplify right side
    25,331.78x = 519,010,327.43
  5. Step 5: Solve for x
    x = 519,010,327.43/25,331.78
  6. Step 6: Final answer
    x = 20,488.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.