Home / 39,671.22-54,746.33-21,766.30

Finding the Fourth Proportional to 39,671.22, 54,746.33 and 21,766.30

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Solution

The fourth proportional to 39,671.22, 54,746.33 and 21,766.30 is: 30,037.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,671.22 : 54,746.33 = 21,766.30 : x
  2. Step 2: Convert to fraction form
    39,671.22/54,746.33 = 21,766.30/x
  3. Step 3: Cross multiply
    39,671.22x = 54,746.33 × 21,766.30
  4. Step 4: Simplify right side
    39,671.22x = 1,191,625,042.68
  5. Step 5: Solve for x
    x = 1,191,625,042.68/39,671.22
  6. Step 6: Final answer
    x = 30,037.52

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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.