Home / 39,785.09-54,882.27-30,209.11

Finding the Fourth Proportional to 39,785.09, 54,882.27 and 30,209.11

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Solution

The fourth proportional to 39,785.09, 54,882.27 and 30,209.11 is: 41,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.09 : 54,882.27 = 30,209.11 : x
  2. Step 2: Convert to fraction form
    39,785.09/54,882.27 = 30,209.11/x
  3. Step 3: Cross multiply
    39,785.09x = 54,882.27 × 30,209.11
  4. Step 4: Simplify right side
    39,785.09x = 1,657,944,531.48
  5. Step 5: Solve for x
    x = 1,657,944,531.48/39,785.09
  6. Step 6: Final answer
    x = 41,672.51

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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.