Home / 30,179.92-45,278.52-9,409.36

Finding the Fourth Proportional to 30,179.92, 45,278.52 and 9,409.36

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Solution

The fourth proportional to 30,179.92, 45,278.52 and 9,409.36 is: 14,116.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.92 : 45,278.52 = 9,409.36 : x
  2. Step 2: Convert to fraction form
    30,179.92/45,278.52 = 9,409.36/x
  3. Step 3: Cross multiply
    30,179.92x = 45,278.52 × 9,409.36
  4. Step 4: Simplify right side
    30,179.92x = 426,041,894.95
  5. Step 5: Solve for x
    x = 426,041,894.95/30,179.92
  6. Step 6: Final answer
    x = 14,116.73

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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.