Home / 30,251.92-45,386.04-10,531.60

Finding the Fourth Proportional to 30,251.92, 45,386.04 and 10,531.60

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Solution

The fourth proportional to 30,251.92, 45,386.04 and 10,531.60 is: 15,800.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.92 : 45,386.04 = 10,531.60 : x
  2. Step 2: Convert to fraction form
    30,251.92/45,386.04 = 10,531.60/x
  3. Step 3: Cross multiply
    30,251.92x = 45,386.04 × 10,531.60
  4. Step 4: Simplify right side
    30,251.92x = 477,987,618.86
  5. Step 5: Solve for x
    x = 477,987,618.86/30,251.92
  6. Step 6: Final answer
    x = 15,800.24

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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.