Home / 31,650.83-43,664.95-18,218.87

Finding the Fourth Proportional to 31,650.83, 43,664.95 and 18,218.87

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Solution

The fourth proportional to 31,650.83, 43,664.95 and 18,218.87 is: 25,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,650.83 : 43,664.95 = 18,218.87 : x
  2. Step 2: Convert to fraction form
    31,650.83/43,664.95 = 18,218.87/x
  3. Step 3: Cross multiply
    31,650.83x = 43,664.95 × 18,218.87
  4. Step 4: Simplify right side
    31,650.83x = 795,526,047.61
  5. Step 5: Solve for x
    x = 795,526,047.61/31,650.83
  6. Step 6: Final answer
    x = 25,134.45

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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.