Home / 39,917.79-55,085.28-22,013.55

Finding the Fourth Proportional to 39,917.79, 55,085.28 and 22,013.55

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Solution

The fourth proportional to 39,917.79, 55,085.28 and 22,013.55 is: 30,378.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,917.79 : 55,085.28 = 22,013.55 : x
  2. Step 2: Convert to fraction form
    39,917.79/55,085.28 = 22,013.55/x
  3. Step 3: Cross multiply
    39,917.79x = 55,085.28 × 22,013.55
  4. Step 4: Simplify right side
    39,917.79x = 1,212,622,565.54
  5. Step 5: Solve for x
    x = 1,212,622,565.54/39,917.79
  6. Step 6: Final answer
    x = 30,378.00

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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.