Home / 39,169.68-54,054.72-21,264.72

Finding the Fourth Proportional to 39,169.68, 54,054.72 and 21,264.72

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Solution

The fourth proportional to 39,169.68, 54,054.72 and 21,264.72 is: 29,345.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,169.68 : 54,054.72 = 21,264.72 : x
  2. Step 2: Convert to fraction form
    39,169.68/54,054.72 = 21,264.72/x
  3. Step 3: Cross multiply
    39,169.68x = 54,054.72 × 21,264.72
  4. Step 4: Simplify right side
    39,169.68x = 1,149,458,485.48
  5. Step 5: Solve for x
    x = 1,149,458,485.48/39,169.68
  6. Step 6: Final answer
    x = 29,345.62

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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.