Home / 39,671.60-54,746.34-21,766.76

Finding the Fourth Proportional to 39,671.60, 54,746.34 and 21,766.76

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Solution

The fourth proportional to 39,671.60, 54,746.34 and 21,766.76 is: 30,037.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,671.60 : 54,746.34 = 21,766.76 : x
  2. Step 2: Convert to fraction form
    39,671.60/54,746.34 = 21,766.76/x
  3. Step 3: Cross multiply
    39,671.60x = 54,746.34 × 21,766.76
  4. Step 4: Simplify right side
    39,671.60x = 1,191,650,443.66
  5. Step 5: Solve for x
    x = 1,191,650,443.66/39,671.60
  6. Step 6: Final answer
    x = 30,037.87

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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.