Home / 30,116.20-45,177-7,929.24

Finding the Fourth Proportional to 30,116.20, 45,177 and 7,929.24

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Solution

The fourth proportional to 30,116.20, 45,177 and 7,929.24 is: 11,894.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,116.20 : 45,177 = 7,929.24 : x
  2. Step 2: Convert to fraction form
    30,116.20/45,177 = 7,929.24/x
  3. Step 3: Cross multiply
    30,116.20x = 45,177 × 7,929.24
  4. Step 4: Simplify right side
    30,116.20x = 358,219,275.48
  5. Step 5: Solve for x
    x = 358,219,275.48/30,116.20
  6. Step 6: Final answer
    x = 11,894.57

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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.