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Finding the Fourth Proportional to 27,270.30, 40,900.05 and 13,230.30

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Solution

The fourth proportional to 27,270.30, 40,900.05 and 13,230.30 is: 19,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,270.30 : 40,900.05 = 13,230.30 : x
  2. Step 2: Convert to fraction form
    27,270.30/40,900.05 = 13,230.30/x
  3. Step 3: Cross multiply
    27,270.30x = 40,900.05 × 13,230.30
  4. Step 4: Simplify right side
    27,270.30x = 541,119,931.52
  5. Step 5: Solve for x
    x = 541,119,931.52/27,270.30
  6. Step 6: Final answer
    x = 19,842.83

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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.