Home / 38,340.15-52,912.71-21,343.83

Finding the Fourth Proportional to 38,340.15, 52,912.71 and 21,343.83

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Solution

The fourth proportional to 38,340.15, 52,912.71 and 21,343.83 is: 29,456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,340.15 : 52,912.71 = 21,343.83 : x
  2. Step 2: Convert to fraction form
    38,340.15/52,912.71 = 21,343.83/x
  3. Step 3: Cross multiply
    38,340.15x = 52,912.71 × 21,343.83
  4. Step 4: Simplify right side
    38,340.15x = 1,129,359,887.08
  5. Step 5: Solve for x
    x = 1,129,359,887.08/38,340.15
  6. Step 6: Final answer
    x = 29,456.32

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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.