Home / 39,357.99-54,312.45-21,452.62

Finding the Fourth Proportional to 39,357.99, 54,312.45 and 21,452.62

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Solution

The fourth proportional to 39,357.99, 54,312.45 and 21,452.62 is: 29,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,357.99 : 54,312.45 = 21,452.62 : x
  2. Step 2: Convert to fraction form
    39,357.99/54,312.45 = 21,452.62/x
  3. Step 3: Cross multiply
    39,357.99x = 54,312.45 × 21,452.62
  4. Step 4: Simplify right side
    39,357.99x = 1,165,144,351.12
  5. Step 5: Solve for x
    x = 1,165,144,351.12/39,357.99
  6. Step 6: Final answer
    x = 29,603.76

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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.