Home / 39,214.24-54,115.76-21,309.12

Finding the Fourth Proportional to 39,214.24, 54,115.76 and 21,309.12

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Solution

The fourth proportional to 39,214.24, 54,115.76 and 21,309.12 is: 29,406.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,214.24 : 54,115.76 = 21,309.12 : x
  2. Step 2: Convert to fraction form
    39,214.24/54,115.76 = 21,309.12/x
  3. Step 3: Cross multiply
    39,214.24x = 54,115.76 × 21,309.12
  4. Step 4: Simplify right side
    39,214.24x = 1,153,159,223.73
  5. Step 5: Solve for x
    x = 1,153,159,223.73/39,214.24
  6. Step 6: Final answer
    x = 29,406.64

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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.