Home / 38,277-52,821.18-21,280.82

Finding the Fourth Proportional to 38,277, 52,821.18 and 21,280.82

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Solution

The fourth proportional to 38,277, 52,821.18 and 21,280.82 is: 29,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,277 : 52,821.18 = 21,280.82 : x
  2. Step 2: Convert to fraction form
    38,277/52,821.18 = 21,280.82/x
  3. Step 3: Cross multiply
    38,277x = 52,821.18 × 21,280.82
  4. Step 4: Simplify right side
    38,277x = 1,124,077,759.66
  5. Step 5: Solve for x
    x = 1,124,077,759.66/38,277
  6. Step 6: Final answer
    x = 29,366.92

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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.