Home / 31,409.20-47,112.54-10,632.70

Finding the Fourth Proportional to 31,409.20, 47,112.54 and 10,632.70

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Solution

The fourth proportional to 31,409.20, 47,112.54 and 10,632.70 is: 15,948.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,409.20 : 47,112.54 = 10,632.70 : x
  2. Step 2: Convert to fraction form
    31,409.20/47,112.54 = 10,632.70/x
  3. Step 3: Cross multiply
    31,409.20x = 47,112.54 × 10,632.70
  4. Step 4: Simplify right side
    31,409.20x = 500,933,504.06
  5. Step 5: Solve for x
    x = 500,933,504.06/31,409.20
  6. Step 6: Final answer
    x = 15,948.62

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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.