Home / 26,178.04-36,161.94-20,865.88

Finding the Fourth Proportional to 26,178.04, 36,161.94 and 20,865.88

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Solution

The fourth proportional to 26,178.04, 36,161.94 and 20,865.88 is: 28,823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,178.04 : 36,161.94 = 20,865.88 : x
  2. Step 2: Convert to fraction form
    26,178.04/36,161.94 = 20,865.88/x
  3. Step 3: Cross multiply
    26,178.04x = 36,161.94 × 20,865.88
  4. Step 4: Simplify right side
    26,178.04x = 754,550,700.61
  5. Step 5: Solve for x
    x = 754,550,700.61/26,178.04
  6. Step 6: Final answer
    x = 28,823.80

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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.