Home / 15,331.07-22,987.94-5,331.21

Finding the Fourth Proportional to 15,331.07, 22,987.94 and 5,331.21

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Solution

The fourth proportional to 15,331.07, 22,987.94 and 5,331.21 is: 7,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,331.07 : 22,987.94 = 5,331.21 : x
  2. Step 2: Convert to fraction form
    15,331.07/22,987.94 = 5,331.21/x
  3. Step 3: Cross multiply
    15,331.07x = 22,987.94 × 5,331.21
  4. Step 4: Simplify right side
    15,331.07x = 122,553,535.61
  5. Step 5: Solve for x
    x = 122,553,535.61/15,331.07
  6. Step 6: Final answer
    x = 7,993.80

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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.