Home / 39,169.87-54,054.50-21,264.92

Finding the Fourth Proportional to 39,169.87, 54,054.50 and 21,264.92

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Solution

The fourth proportional to 39,169.87, 54,054.50 and 21,264.92 is: 29,345.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,169.87 : 54,054.50 = 21,264.92 : x
  2. Step 2: Convert to fraction form
    39,169.87/54,054.50 = 21,264.92/x
  3. Step 3: Cross multiply
    39,169.87x = 54,054.50 × 21,264.92
  4. Step 4: Simplify right side
    39,169.87x = 1,149,464,618.14
  5. Step 5: Solve for x
    x = 1,149,464,618.14/39,169.87
  6. Step 6: Final answer
    x = 29,345.63

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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.