Home / 39,169.66-54,053.81-21,264.64

Finding the Fourth Proportional to 39,169.66, 54,053.81 and 21,264.64

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Solution

The fourth proportional to 39,169.66, 54,053.81 and 21,264.64 is: 29,345.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,169.66 : 54,053.81 = 21,264.64 : x
  2. Step 2: Convert to fraction form
    39,169.66/54,053.81 = 21,264.64/x
  3. Step 3: Cross multiply
    39,169.66x = 54,053.81 × 21,264.64
  4. Step 4: Simplify right side
    39,169.66x = 1,149,434,810.28
  5. Step 5: Solve for x
    x = 1,149,434,810.28/39,169.66
  6. Step 6: Final answer
    x = 29,345.03

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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.