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Finding the Fourth Proportional to 30,387.40, 45,581.10 and 26,232.10

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Solution

The fourth proportional to 30,387.40, 45,581.10 and 26,232.10 is: 39,348.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,387.40 : 45,581.10 = 26,232.10 : x
  2. Step 2: Convert to fraction form
    30,387.40/45,581.10 = 26,232.10/x
  3. Step 3: Cross multiply
    30,387.40x = 45,581.10 × 26,232.10
  4. Step 4: Simplify right side
    30,387.40x = 1,195,687,973.31
  5. Step 5: Solve for x
    x = 1,195,687,973.31/30,387.40
  6. Step 6: Final answer
    x = 39,348.15

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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.