Home / 28,854.68-39,773.97-21,276.74

Finding the Fourth Proportional to 28,854.68, 39,773.97 and 21,276.74

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Solution

The fourth proportional to 28,854.68, 39,773.97 and 21,276.74 is: 29,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.68 : 39,773.97 = 21,276.74 : x
  2. Step 2: Convert to fraction form
    28,854.68/39,773.97 = 21,276.74/x
  3. Step 3: Cross multiply
    28,854.68x = 39,773.97 × 21,276.74
  4. Step 4: Simplify right side
    28,854.68x = 846,260,418.46
  5. Step 5: Solve for x
    x = 846,260,418.46/28,854.68
  6. Step 6: Final answer
    x = 29,328.36

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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.