Home / 39,948.94-55,362.61-39,385.18

Finding the Fourth Proportional to 39,948.94, 55,362.61 and 39,385.18

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Solution

The fourth proportional to 39,948.94, 55,362.61 and 39,385.18 is: 54,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,948.94 : 55,362.61 = 39,385.18 : x
  2. Step 2: Convert to fraction form
    39,948.94/55,362.61 = 39,385.18/x
  3. Step 3: Cross multiply
    39,948.94x = 55,362.61 × 39,385.18
  4. Step 4: Simplify right side
    39,948.94x = 2,180,466,360.12
  5. Step 5: Solve for x
    x = 2,180,466,360.12/39,948.94
  6. Step 6: Final answer
    x = 54,581.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.