Home / 27,942.60-42,000.30-27,424.20

Finding the Fourth Proportional to 27,942.60, 42,000.30 and 27,424.20

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Solution

The fourth proportional to 27,942.60, 42,000.30 and 27,424.20 is: 41,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,942.60 : 42,000.30 = 27,424.20 : x
  2. Step 2: Convert to fraction form
    27,942.60/42,000.30 = 27,424.20/x
  3. Step 3: Cross multiply
    27,942.60x = 42,000.30 × 27,424.20
  4. Step 4: Simplify right side
    27,942.60x = 1,151,824,627.26
  5. Step 5: Solve for x
    x = 1,151,824,627.26/27,942.60
  6. Step 6: Final answer
    x = 41,221.10

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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.