Home / 39,260.45-54,180.14-21,355.60

Finding the Fourth Proportional to 39,260.45, 54,180.14 and 21,355.60

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Solution

The fourth proportional to 39,260.45, 54,180.14 and 21,355.60 is: 29,471.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,260.45 : 54,180.14 = 21,355.60 : x
  2. Step 2: Convert to fraction form
    39,260.45/54,180.14 = 21,355.60/x
  3. Step 3: Cross multiply
    39,260.45x = 54,180.14 × 21,355.60
  4. Step 4: Simplify right side
    39,260.45x = 1,157,049,155.56
  5. Step 5: Solve for x
    x = 1,157,049,155.56/39,260.45
  6. Step 6: Final answer
    x = 29,471.12

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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.