Home / 31,989.02-44,144.19-18,561.58

Finding the Fourth Proportional to 31,989.02, 44,144.19 and 18,561.58

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Solution

The fourth proportional to 31,989.02, 44,144.19 and 18,561.58 is: 25,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,989.02 : 44,144.19 = 18,561.58 : x
  2. Step 2: Convert to fraction form
    31,989.02/44,144.19 = 18,561.58/x
  3. Step 3: Cross multiply
    31,989.02x = 44,144.19 × 18,561.58
  4. Step 4: Simplify right side
    31,989.02x = 819,385,803.86
  5. Step 5: Solve for x
    x = 819,385,803.86/31,989.02
  6. Step 6: Final answer
    x = 25,614.60

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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.