Home / 30,357.28-45,541.41-13,725.15

Finding the Fourth Proportional to 30,357.28, 45,541.41 and 13,725.15

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Solution

The fourth proportional to 30,357.28, 45,541.41 and 13,725.15 is: 20,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,357.28 : 45,541.41 = 13,725.15 : x
  2. Step 2: Convert to fraction form
    30,357.28/45,541.41 = 13,725.15/x
  3. Step 3: Cross multiply
    30,357.28x = 45,541.41 × 13,725.15
  4. Step 4: Simplify right side
    30,357.28x = 625,062,387.13
  5. Step 5: Solve for x
    x = 625,062,387.13/30,357.28
  6. Step 6: Final answer
    x = 20,590.20

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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.