Home / 38,512.15-53,146.17-21,516.63

Finding the Fourth Proportional to 38,512.15, 53,146.17 and 21,516.63

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Solution

The fourth proportional to 38,512.15, 53,146.17 and 21,516.63 is: 29,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512.15 : 53,146.17 = 21,516.63 : x
  2. Step 2: Convert to fraction form
    38,512.15/53,146.17 = 21,516.63/x
  3. Step 3: Cross multiply
    38,512.15x = 53,146.17 × 21,516.63
  4. Step 4: Simplify right side
    38,512.15x = 1,143,526,368.22
  5. Step 5: Solve for x
    x = 1,143,526,368.22/38,512.15
  6. Step 6: Final answer
    x = 29,692.61

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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.