Home / 26,598.28-36,720.42-20,921.80

Finding the Fourth Proportional to 26,598.28, 36,720.42 and 20,921.80

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Solution

The fourth proportional to 26,598.28, 36,720.42 and 20,921.80 is: 28,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,598.28 : 36,720.42 = 20,921.80 : x
  2. Step 2: Convert to fraction form
    26,598.28/36,720.42 = 20,921.80/x
  3. Step 3: Cross multiply
    26,598.28x = 36,720.42 × 20,921.80
  4. Step 4: Simplify right side
    26,598.28x = 768,257,283.16
  5. Step 5: Solve for x
    x = 768,257,283.16/26,598.28
  6. Step 6: Final answer
    x = 28,883.72

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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.