Home / 31,541.02-43,524.61-18,102.81

Finding the Fourth Proportional to 31,541.02, 43,524.61 and 18,102.81

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Solution

The fourth proportional to 31,541.02, 43,524.61 and 18,102.81 is: 24,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,541.02 : 43,524.61 = 18,102.81 : x
  2. Step 2: Convert to fraction form
    31,541.02/43,524.61 = 18,102.81/x
  3. Step 3: Cross multiply
    31,541.02x = 43,524.61 × 18,102.81
  4. Step 4: Simplify right side
    31,541.02x = 787,917,745.15
  5. Step 5: Solve for x
    x = 787,917,745.15/31,541.02
  6. Step 6: Final answer
    x = 24,980.73

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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.