Home / 39,254.72-54,171.68-21,349.80

Finding the Fourth Proportional to 39,254.72, 54,171.68 and 21,349.80

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Solution

The fourth proportional to 39,254.72, 54,171.68 and 21,349.80 is: 29,462.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,254.72 : 54,171.68 = 21,349.80 : x
  2. Step 2: Convert to fraction form
    39,254.72/54,171.68 = 21,349.80/x
  3. Step 3: Cross multiply
    39,254.72x = 54,171.68 × 21,349.80
  4. Step 4: Simplify right side
    39,254.72x = 1,156,554,533.66
  5. Step 5: Solve for x
    x = 1,156,554,533.66/39,254.72
  6. Step 6: Final answer
    x = 29,462.81

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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.