Home / 31,701.65-43,748.20-18,272.81

Finding the Fourth Proportional to 31,701.65, 43,748.20 and 18,272.81

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Solution

The fourth proportional to 31,701.65, 43,748.20 and 18,272.81 is: 25,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,701.65 : 43,748.20 = 18,272.81 : x
  2. Step 2: Convert to fraction form
    31,701.65/43,748.20 = 18,272.81/x
  3. Step 3: Cross multiply
    31,701.65x = 43,748.20 × 18,272.81
  4. Step 4: Simplify right side
    31,701.65x = 799,402,432.57
  5. Step 5: Solve for x
    x = 799,402,432.57/31,701.65
  6. Step 6: Final answer
    x = 25,216.43

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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.