Home / 26,597.28-36,719.04-20,920.80

Finding the Fourth Proportional to 26,597.28, 36,719.04 and 20,920.80

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Solution

The fourth proportional to 26,597.28, 36,719.04 and 20,920.80 is: 28,882.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,597.28 : 36,719.04 = 20,920.80 : x
  2. Step 2: Convert to fraction form
    26,597.28/36,719.04 = 20,920.80/x
  3. Step 3: Cross multiply
    26,597.28x = 36,719.04 × 20,920.80
  4. Step 4: Simplify right side
    26,597.28x = 768,191,692.03
  5. Step 5: Solve for x
    x = 768,191,692.03/26,597.28
  6. Step 6: Final answer
    x = 28,882.34

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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.