Home / 32,899.26-45,390.33-20,139.15

Finding the Fourth Proportional to 32,899.26, 45,390.33 and 20,139.15

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Solution

The fourth proportional to 32,899.26, 45,390.33 and 20,139.15 is: 27,785.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,899.26 : 45,390.33 = 20,139.15 : x
  2. Step 2: Convert to fraction form
    32,899.26/45,390.33 = 20,139.15/x
  3. Step 3: Cross multiply
    32,899.26x = 45,390.33 × 20,139.15
  4. Step 4: Simplify right side
    32,899.26x = 914,122,664.42
  5. Step 5: Solve for x
    x = 914,122,664.42/32,899.26
  6. Step 6: Final answer
    x = 27,785.51

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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.