Home / 26,280.13-39,364.15-21,260.97

Finding the Fourth Proportional to 26,280.13, 39,364.15 and 21,260.97

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Solution

The fourth proportional to 26,280.13, 39,364.15 and 21,260.97 is: 31,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,280.13 : 39,364.15 = 21,260.97 : x
  2. Step 2: Convert to fraction form
    26,280.13/39,364.15 = 21,260.97/x
  3. Step 3: Cross multiply
    26,280.13x = 39,364.15 × 21,260.97
  4. Step 4: Simplify right side
    26,280.13x = 836,919,815.40
  5. Step 5: Solve for x
    x = 836,919,815.40/26,280.13
  6. Step 6: Final answer
    x = 31,846.11

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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.