Home / 28,422.29-39,223.04-15,675.96

Finding the Fourth Proportional to 28,422.29, 39,223.04 and 15,675.96

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Solution

The fourth proportional to 28,422.29, 39,223.04 and 15,675.96 is: 21,632.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422.29 : 39,223.04 = 15,675.96 : x
  2. Step 2: Convert to fraction form
    28,422.29/39,223.04 = 15,675.96/x
  3. Step 3: Cross multiply
    28,422.29x = 39,223.04 × 15,675.96
  4. Step 4: Simplify right side
    28,422.29x = 614,858,874.82
  5. Step 5: Solve for x
    x = 614,858,874.82/28,422.29
  6. Step 6: Final answer
    x = 21,632.98

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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.