Home / 39,890.85-55,047.60-22,883.28

Finding the Fourth Proportional to 39,890.85, 55,047.60 and 22,883.28

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Solution

The fourth proportional to 39,890.85, 55,047.60 and 22,883.28 is: 31,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,890.85 : 55,047.60 = 22,883.28 : x
  2. Step 2: Convert to fraction form
    39,890.85/55,047.60 = 22,883.28/x
  3. Step 3: Cross multiply
    39,890.85x = 55,047.60 × 22,883.28
  4. Step 4: Simplify right side
    39,890.85x = 1,259,669,644.13
  5. Step 5: Solve for x
    x = 1,259,669,644.13/39,890.85
  6. Step 6: Final answer
    x = 31,577.91

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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.