Home / 21,423.28-32,130.60-5,839.60

Finding the Fourth Proportional to 21,423.28, 32,130.60 and 5,839.60

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Solution

The fourth proportional to 21,423.28, 32,130.60 and 5,839.60 is: 8,758.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.28 : 32,130.60 = 5,839.60 : x
  2. Step 2: Convert to fraction form
    21,423.28/32,130.60 = 5,839.60/x
  3. Step 3: Cross multiply
    21,423.28x = 32,130.60 × 5,839.60
  4. Step 4: Simplify right side
    21,423.28x = 187,629,851.76
  5. Step 5: Solve for x
    x = 187,629,851.76/21,423.28
  6. Step 6: Final answer
    x = 8,758.22

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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.