Home / 31,981.37-44,134.55-18,560.63

Finding the Fourth Proportional to 31,981.37, 44,134.55 and 18,560.63

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Solution

The fourth proportional to 31,981.37, 44,134.55 and 18,560.63 is: 25,613.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.37 : 44,134.55 = 18,560.63 : x
  2. Step 2: Convert to fraction form
    31,981.37/44,134.55 = 18,560.63/x
  3. Step 3: Cross multiply
    31,981.37x = 44,134.55 × 18,560.63
  4. Step 4: Simplify right side
    31,981.37x = 819,164,959.96
  5. Step 5: Solve for x
    x = 819,164,959.96/31,981.37
  6. Step 6: Final answer
    x = 25,613.82

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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.