Home / 26,220.71-39,287.33-18,415.55

Finding the Fourth Proportional to 26,220.71, 39,287.33 and 18,415.55

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Solution

The fourth proportional to 26,220.71, 39,287.33 and 18,415.55 is: 27,592.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,220.71 : 39,287.33 = 18,415.55 : x
  2. Step 2: Convert to fraction form
    26,220.71/39,287.33 = 18,415.55/x
  3. Step 3: Cross multiply
    26,220.71x = 39,287.33 × 18,415.55
  4. Step 4: Simplify right side
    26,220.71x = 723,497,865.18
  5. Step 5: Solve for x
    x = 723,497,865.18/26,220.71
  6. Step 6: Final answer
    x = 27,592.61

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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.