Home / 39,731.80-54,840.90-22,745.56

Finding the Fourth Proportional to 39,731.80, 54,840.90 and 22,745.56

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Solution

The fourth proportional to 39,731.80, 54,840.90 and 22,745.56 is: 31,395.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,731.80 : 54,840.90 = 22,745.56 : x
  2. Step 2: Convert to fraction form
    39,731.80/54,840.90 = 22,745.56/x
  3. Step 3: Cross multiply
    39,731.80x = 54,840.90 × 22,745.56
  4. Step 4: Simplify right side
    39,731.80x = 1,247,386,981.40
  5. Step 5: Solve for x
    x = 1,247,386,981.40/39,731.80
  6. Step 6: Final answer
    x = 31,395.18

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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.