Home / 38,121.46-52,606.92-21,125.05

Finding the Fourth Proportional to 38,121.46, 52,606.92 and 21,125.05

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Solution

The fourth proportional to 38,121.46, 52,606.92 and 21,125.05 is: 29,152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,121.46 : 52,606.92 = 21,125.05 : x
  2. Step 2: Convert to fraction form
    38,121.46/52,606.92 = 21,125.05/x
  3. Step 3: Cross multiply
    38,121.46x = 52,606.92 × 21,125.05
  4. Step 4: Simplify right side
    38,121.46x = 1,111,323,940.13
  5. Step 5: Solve for x
    x = 1,111,323,940.13/38,121.46
  6. Step 6: Final answer
    x = 29,152.19

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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.