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Finding the Fourth Proportional to 27,993.72, 42,009.30 and 15,526.20

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Solution

The fourth proportional to 27,993.72, 42,009.30 and 15,526.20 is: 23,299.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,993.72 : 42,009.30 = 15,526.20 : x
  2. Step 2: Convert to fraction form
    27,993.72/42,009.30 = 15,526.20/x
  3. Step 3: Cross multiply
    27,993.72x = 42,009.30 × 15,526.20
  4. Step 4: Simplify right side
    27,993.72x = 652,244,793.66
  5. Step 5: Solve for x
    x = 652,244,793.66/27,993.72
  6. Step 6: Final answer
    x = 23,299.68

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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.