Home / 45,280.33-67,922.89-13,689.58

Finding the Fourth Proportional to 45,280.33, 67,922.89 and 13,689.58

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Solution

The fourth proportional to 45,280.33, 67,922.89 and 13,689.58 is: 20,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,280.33 : 67,922.89 = 13,689.58 : x
  2. Step 2: Convert to fraction form
    45,280.33/67,922.89 = 13,689.58/x
  3. Step 3: Cross multiply
    45,280.33x = 67,922.89 × 13,689.58
  4. Step 4: Simplify right side
    45,280.33x = 929,836,037.47
  5. Step 5: Solve for x
    x = 929,836,037.47/45,280.33
  6. Step 6: Final answer
    x = 20,535.10

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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.