Home / 31,751.55-47,648.93-18,589.95

Finding the Fourth Proportional to 31,751.55, 47,648.93 and 18,589.95

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Solution

The fourth proportional to 31,751.55, 47,648.93 and 18,589.95 is: 27,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.55 : 47,648.93 = 18,589.95 : x
  2. Step 2: Convert to fraction form
    31,751.55/47,648.93 = 18,589.95/x
  3. Step 3: Cross multiply
    31,751.55x = 47,648.93 × 18,589.95
  4. Step 4: Simplify right side
    31,751.55x = 885,791,133.30
  5. Step 5: Solve for x
    x = 885,791,133.30/31,751.55
  6. Step 6: Final answer
    x = 27,897.57

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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.