Home / 28,222.61-42,359.29-15,086.21

Finding the Fourth Proportional to 28,222.61, 42,359.29 and 15,086.21

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Solution

The fourth proportional to 28,222.61, 42,359.29 and 15,086.21 is: 22,642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.61 : 42,359.29 = 15,086.21 : x
  2. Step 2: Convert to fraction form
    28,222.61/42,359.29 = 15,086.21/x
  3. Step 3: Cross multiply
    28,222.61x = 42,359.29 × 15,086.21
  4. Step 4: Simplify right side
    28,222.61x = 639,040,894.88
  5. Step 5: Solve for x
    x = 639,040,894.88/28,222.61
  6. Step 6: Final answer
    x = 22,642.87

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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.