Home / 39,729.40-54,823.14-22,730.20

Finding the Fourth Proportional to 39,729.40, 54,823.14 and 22,730.20

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Solution

The fourth proportional to 39,729.40, 54,823.14 and 22,730.20 is: 31,365.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,729.40 : 54,823.14 = 22,730.20 : x
  2. Step 2: Convert to fraction form
    39,729.40/54,823.14 = 22,730.20/x
  3. Step 3: Cross multiply
    39,729.40x = 54,823.14 × 22,730.20
  4. Step 4: Simplify right side
    39,729.40x = 1,246,140,936.83
  5. Step 5: Solve for x
    x = 1,246,140,936.83/39,729.40
  6. Step 6: Final answer
    x = 31,365.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.