Home / 39,276.18-54,200.40-21,371.70

Finding the Fourth Proportional to 39,276.18, 54,200.40 and 21,371.70

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Solution

The fourth proportional to 39,276.18, 54,200.40 and 21,371.70 is: 29,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,276.18 : 54,200.40 = 21,371.70 : x
  2. Step 2: Convert to fraction form
    39,276.18/54,200.40 = 21,371.70/x
  3. Step 3: Cross multiply
    39,276.18x = 54,200.40 × 21,371.70
  4. Step 4: Simplify right side
    39,276.18x = 1,158,354,688.68
  5. Step 5: Solve for x
    x = 1,158,354,688.68/39,276.18
  6. Step 6: Final answer
    x = 29,492.55

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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.