Home / 31,347.12-47,005.56-18,202.80

Finding the Fourth Proportional to 31,347.12, 47,005.56 and 18,202.80

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Solution

The fourth proportional to 31,347.12, 47,005.56 and 18,202.80 is: 27,295.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.12 : 47,005.56 = 18,202.80 : x
  2. Step 2: Convert to fraction form
    31,347.12/47,005.56 = 18,202.80/x
  3. Step 3: Cross multiply
    31,347.12x = 47,005.56 × 18,202.80
  4. Step 4: Simplify right side
    31,347.12x = 855,632,807.57
  5. Step 5: Solve for x
    x = 855,632,807.57/31,347.12
  6. Step 6: Final answer
    x = 27,295.42

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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.