Home / 45,340.40-67,943.64-21,938.96

Finding the Fourth Proportional to 45,340.40, 67,943.64 and 21,938.96

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Solution

The fourth proportional to 45,340.40, 67,943.64 and 21,938.96 is: 32,876.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,340.40 : 67,943.64 = 21,938.96 : x
  2. Step 2: Convert to fraction form
    45,340.40/67,943.64 = 21,938.96/x
  3. Step 3: Cross multiply
    45,340.40x = 67,943.64 × 21,938.96
  4. Step 4: Simplify right side
    45,340.40x = 1,490,612,800.21
  5. Step 5: Solve for x
    x = 1,490,612,800.21/45,340.40
  6. Step 6: Final answer
    x = 32,876.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.