Home / 30,243.20-45,288.16-25,300.64

Finding the Fourth Proportional to 30,243.20, 45,288.16 and 25,300.64

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Solution

The fourth proportional to 30,243.20, 45,288.16 and 25,300.64 is: 37,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,243.20 : 45,288.16 = 25,300.64 : x
  2. Step 2: Convert to fraction form
    30,243.20/45,288.16 = 25,300.64/x
  3. Step 3: Cross multiply
    30,243.20x = 45,288.16 × 25,300.64
  4. Step 4: Simplify right side
    30,243.20x = 1,145,819,432.42
  5. Step 5: Solve for x
    x = 1,145,819,432.42/30,243.20
  6. Step 6: Final answer
    x = 37,886.85

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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.