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Finding the Fourth Proportional to 27,246.60, 40,869.90 and 19,902.60

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Solution

The fourth proportional to 27,246.60, 40,869.90 and 19,902.60 is: 29,853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,246.60 : 40,869.90 = 19,902.60 : x
  2. Step 2: Convert to fraction form
    27,246.60/40,869.90 = 19,902.60/x
  3. Step 3: Cross multiply
    27,246.60x = 40,869.90 × 19,902.60
  4. Step 4: Simplify right side
    27,246.60x = 813,417,271.74
  5. Step 5: Solve for x
    x = 813,417,271.74/27,246.60
  6. Step 6: Final answer
    x = 29,853.90

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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.