Home / 39,148.99-54,026-21,244.15

Finding the Fourth Proportional to 39,148.99, 54,026 and 21,244.15

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Solution

The fourth proportional to 39,148.99, 54,026 and 21,244.15 is: 29,317.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,148.99 : 54,026 = 21,244.15 : x
  2. Step 2: Convert to fraction form
    39,148.99/54,026 = 21,244.15/x
  3. Step 3: Cross multiply
    39,148.99x = 54,026 × 21,244.15
  4. Step 4: Simplify right side
    39,148.99x = 1,147,736,447.90
  5. Step 5: Solve for x
    x = 1,147,736,447.90/39,148.99
  6. Step 6: Final answer
    x = 29,317.14

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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.