Home / 39,260.85-54,180.41-21,355.91

Finding the Fourth Proportional to 39,260.85, 54,180.41 and 21,355.91

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Solution

The fourth proportional to 39,260.85, 54,180.41 and 21,355.91 is: 29,471.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,260.85 : 54,180.41 = 21,355.91 : x
  2. Step 2: Convert to fraction form
    39,260.85/54,180.41 = 21,355.91/x
  3. Step 3: Cross multiply
    39,260.85x = 54,180.41 × 21,355.91
  4. Step 4: Simplify right side
    39,260.85x = 1,157,071,582.04
  5. Step 5: Solve for x
    x = 1,157,071,582.04/39,260.85
  6. Step 6: Final answer
    x = 29,471.38

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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.