Home / 31,987.65-44,131.38-18,551.52

Finding the Fourth Proportional to 31,987.65, 44,131.38 and 18,551.52

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Solution

The fourth proportional to 31,987.65, 44,131.38 and 18,551.52 is: 25,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,987.65 : 44,131.38 = 18,551.52 : x
  2. Step 2: Convert to fraction form
    31,987.65/44,131.38 = 18,551.52/x
  3. Step 3: Cross multiply
    31,987.65x = 44,131.38 × 18,551.52
  4. Step 4: Simplify right side
    31,987.65x = 818,704,178.70
  5. Step 5: Solve for x
    x = 818,704,178.70/31,987.65
  6. Step 6: Final answer
    x = 25,594.38

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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.