Home / 39,386.26-54,352.80-21,481.18

Finding the Fourth Proportional to 39,386.26, 54,352.80 and 21,481.18

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Solution

The fourth proportional to 39,386.26, 54,352.80 and 21,481.18 is: 29,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,386.26 : 54,352.80 = 21,481.18 : x
  2. Step 2: Convert to fraction form
    39,386.26/54,352.80 = 21,481.18/x
  3. Step 3: Cross multiply
    39,386.26x = 54,352.80 × 21,481.18
  4. Step 4: Simplify right side
    39,386.26x = 1,167,562,280.30
  5. Step 5: Solve for x
    x = 1,167,562,280.30/39,386.26
  6. Step 6: Final answer
    x = 29,643.90

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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.