Home / 28,702.61-39,607.31-15,954.79

Finding the Fourth Proportional to 28,702.61, 39,607.31 and 15,954.79

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Solution

The fourth proportional to 28,702.61, 39,607.31 and 15,954.79 is: 22,016.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.61 : 39,607.31 = 15,954.79 : x
  2. Step 2: Convert to fraction form
    28,702.61/39,607.31 = 15,954.79/x
  3. Step 3: Cross multiply
    28,702.61x = 39,607.31 × 15,954.79
  4. Step 4: Simplify right side
    28,702.61x = 631,926,233.74
  5. Step 5: Solve for x
    x = 631,926,233.74/28,702.61
  6. Step 6: Final answer
    x = 22,016.33

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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.