Home / 38,143.17-52,639.23-21,146.33

Finding the Fourth Proportional to 38,143.17, 52,639.23 and 21,146.33

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Solution

The fourth proportional to 38,143.17, 52,639.23 and 21,146.33 is: 29,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.17 : 52,639.23 = 21,146.33 : x
  2. Step 2: Convert to fraction form
    38,143.17/52,639.23 = 21,146.33/x
  3. Step 3: Cross multiply
    38,143.17x = 52,639.23 × 21,146.33
  4. Step 4: Simplify right side
    38,143.17x = 1,113,126,528.53
  5. Step 5: Solve for x
    x = 1,113,126,528.53/38,143.17
  6. Step 6: Final answer
    x = 29,182.85

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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.