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Finding the Fourth Proportional to 27,030.60, 40,545.90 and 19,600.20

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Solution

The fourth proportional to 27,030.60, 40,545.90 and 19,600.20 is: 29,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,030.60 : 40,545.90 = 19,600.20 : x
  2. Step 2: Convert to fraction form
    27,030.60/40,545.90 = 19,600.20/x
  3. Step 3: Cross multiply
    27,030.60x = 40,545.90 × 19,600.20
  4. Step 4: Simplify right side
    27,030.60x = 794,707,749.18
  5. Step 5: Solve for x
    x = 794,707,749.18/27,030.60
  6. Step 6: Final answer
    x = 29,400.30

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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.