Home / 31,756.22-43,829.29-18,325.61

Finding the Fourth Proportional to 31,756.22, 43,829.29 and 18,325.61

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Solution

The fourth proportional to 31,756.22, 43,829.29 and 18,325.61 is: 25,292.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,756.22 : 43,829.29 = 18,325.61 : x
  2. Step 2: Convert to fraction form
    31,756.22/43,829.29 = 18,325.61/x
  3. Step 3: Cross multiply
    31,756.22x = 43,829.29 × 18,325.61
  4. Step 4: Simplify right side
    31,756.22x = 803,198,164.34
  5. Step 5: Solve for x
    x = 803,198,164.34/31,756.22
  6. Step 6: Final answer
    x = 25,292.63

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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.