Home / 26,553.39-36,639.39-15,220.80

Finding the Fourth Proportional to 26,553.39, 36,639.39 and 15,220.80

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Solution

The fourth proportional to 26,553.39, 36,639.39 and 15,220.80 is: 21,002.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,553.39 : 36,639.39 = 15,220.80 : x
  2. Step 2: Convert to fraction form
    26,553.39/36,639.39 = 15,220.80/x
  3. Step 3: Cross multiply
    26,553.39x = 36,639.39 × 15,220.80
  4. Step 4: Simplify right side
    26,553.39x = 557,680,827.31
  5. Step 5: Solve for x
    x = 557,680,827.31/26,553.39
  6. Step 6: Final answer
    x = 21,002.25

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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.