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Finding the Fourth Proportional to 30,471.60, 45,636.12 and 26,356.80

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Solution

The fourth proportional to 30,471.60, 45,636.12 and 26,356.80 is: 39,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,471.60 : 45,636.12 = 26,356.80 : x
  2. Step 2: Convert to fraction form
    30,471.60/45,636.12 = 26,356.80/x
  3. Step 3: Cross multiply
    30,471.60x = 45,636.12 × 26,356.80
  4. Step 4: Simplify right side
    30,471.60x = 1,202,822,087.62
  5. Step 5: Solve for x
    x = 1,202,822,087.62/30,471.60
  6. Step 6: Final answer
    x = 39,473.55

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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.