Home / 39,378.15-54,328.73-25,239.20

Finding the Fourth Proportional to 39,378.15, 54,328.73 and 25,239.20

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Solution

The fourth proportional to 39,378.15, 54,328.73 and 25,239.20 is: 34,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.15 : 54,328.73 = 25,239.20 : x
  2. Step 2: Convert to fraction form
    39,378.15/54,328.73 = 25,239.20/x
  3. Step 3: Cross multiply
    39,378.15x = 54,328.73 × 25,239.20
  4. Step 4: Simplify right side
    39,378.15x = 1,371,213,284.38
  5. Step 5: Solve for x
    x = 1,371,213,284.38/39,378.15
  6. Step 6: Final answer
    x = 34,821.68

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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.