Home / 39,164.72-54,048.47-21,260.88

Finding the Fourth Proportional to 39,164.72, 54,048.47 and 21,260.88

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Solution

The fourth proportional to 39,164.72, 54,048.47 and 21,260.88 is: 29,340.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,164.72 : 54,048.47 = 21,260.88 : x
  2. Step 2: Convert to fraction form
    39,164.72/54,048.47 = 21,260.88/x
  3. Step 3: Cross multiply
    39,164.72x = 54,048.47 × 21,260.88
  4. Step 4: Simplify right side
    39,164.72x = 1,149,117,928.55
  5. Step 5: Solve for x
    x = 1,149,117,928.55/39,164.72
  6. Step 6: Final answer
    x = 29,340.64

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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.