Home / 39,856.68-55,002.58-21,951.74

Finding the Fourth Proportional to 39,856.68, 55,002.58 and 21,951.74

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Solution

The fourth proportional to 39,856.68, 55,002.58 and 21,951.74 is: 30,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,856.68 : 55,002.58 = 21,951.74 : x
  2. Step 2: Convert to fraction form
    39,856.68/55,002.58 = 21,951.74/x
  3. Step 3: Cross multiply
    39,856.68x = 55,002.58 × 21,951.74
  4. Step 4: Simplify right side
    39,856.68x = 1,207,402,335.49
  5. Step 5: Solve for x
    x = 1,207,402,335.49/39,856.68
  6. Step 6: Final answer
    x = 30,293.60

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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.