Home / 23,618.11-35,242.13-21,135.86

Finding the Fourth Proportional to 23,618.11, 35,242.13 and 21,135.86

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Solution

The fourth proportional to 23,618.11, 35,242.13 and 21,135.86 is: 31,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,618.11 : 35,242.13 = 21,135.86 : x
  2. Step 2: Convert to fraction form
    23,618.11/35,242.13 = 21,135.86/x
  3. Step 3: Cross multiply
    23,618.11x = 35,242.13 × 21,135.86
  4. Step 4: Simplify right side
    23,618.11x = 744,872,725.78
  5. Step 5: Solve for x
    x = 744,872,725.78/23,618.11
  6. Step 6: Final answer
    x = 31,538.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.