Home / 26,649.73-39,979.47-13,329.70

Finding the Fourth Proportional to 26,649.73, 39,979.47 and 13,329.70

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Solution

The fourth proportional to 26,649.73, 39,979.47 and 13,329.70 is: 19,996.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,649.73 : 39,979.47 = 13,329.70 : x
  2. Step 2: Convert to fraction form
    26,649.73/39,979.47 = 13,329.70/x
  3. Step 3: Cross multiply
    26,649.73x = 39,979.47 × 13,329.70
  4. Step 4: Simplify right side
    26,649.73x = 532,914,341.26
  5. Step 5: Solve for x
    x = 532,914,341.26/26,649.73
  6. Step 6: Final answer
    x = 19,996.99

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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.