Home / 38,143.45-52,641.07-21,153.02

Finding the Fourth Proportional to 38,143.45, 52,641.07 and 21,153.02

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Solution

The fourth proportional to 38,143.45, 52,641.07 and 21,153.02 is: 29,192.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.45 : 52,641.07 = 21,153.02 : x
  2. Step 2: Convert to fraction form
    38,143.45/52,641.07 = 21,153.02/x
  3. Step 3: Cross multiply
    38,143.45x = 52,641.07 × 21,153.02
  4. Step 4: Simplify right side
    38,143.45x = 1,113,517,290.44
  5. Step 5: Solve for x
    x = 1,113,517,290.44/38,143.45
  6. Step 6: Final answer
    x = 29,192.88

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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.