Home / 39,254.91-54,171.39-21,350.07

Finding the Fourth Proportional to 39,254.91, 54,171.39 and 21,350.07

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Solution

The fourth proportional to 39,254.91, 54,171.39 and 21,350.07 is: 29,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,254.91 : 54,171.39 = 21,350.07 : x
  2. Step 2: Convert to fraction form
    39,254.91/54,171.39 = 21,350.07/x
  3. Step 3: Cross multiply
    39,254.91x = 54,171.39 × 21,350.07
  4. Step 4: Simplify right side
    39,254.91x = 1,156,562,968.50
  5. Step 5: Solve for x
    x = 1,156,562,968.50/39,254.91
  6. Step 6: Final answer
    x = 29,462.89

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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.