Home / 31,828.40-47,743.54-15,190.20

Finding the Fourth Proportional to 31,828.40, 47,743.54 and 15,190.20

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Solution

The fourth proportional to 31,828.40, 47,743.54 and 15,190.20 is: 22,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,828.40 : 47,743.54 = 15,190.20 : x
  2. Step 2: Convert to fraction form
    31,828.40/47,743.54 = 15,190.20/x
  3. Step 3: Cross multiply
    31,828.40x = 47,743.54 × 15,190.20
  4. Step 4: Simplify right side
    31,828.40x = 725,233,921.31
  5. Step 5: Solve for x
    x = 725,233,921.31/31,828.40
  6. Step 6: Final answer
    x = 22,785.75

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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.