Home / 39,862.13-55,019.45-23,104.85

Finding the Fourth Proportional to 39,862.13, 55,019.45 and 23,104.85

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Solution

The fourth proportional to 39,862.13, 55,019.45 and 23,104.85 is: 31,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,862.13 : 55,019.45 = 23,104.85 : x
  2. Step 2: Convert to fraction form
    39,862.13/55,019.45 = 23,104.85/x
  3. Step 3: Cross multiply
    39,862.13x = 55,019.45 × 23,104.85
  4. Step 4: Simplify right side
    39,862.13x = 1,271,215,922.00
  5. Step 5: Solve for x
    x = 1,271,215,922.00/39,862.13
  6. Step 6: Final answer
    x = 31,890.32

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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.