Home / 25,972.47-38,927.94-11,920.68

Finding the Fourth Proportional to 25,972.47, 38,927.94 and 11,920.68

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Solution

The fourth proportional to 25,972.47, 38,927.94 and 11,920.68 is: 17,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,972.47 : 38,927.94 = 11,920.68 : x
  2. Step 2: Convert to fraction form
    25,972.47/38,927.94 = 11,920.68/x
  3. Step 3: Cross multiply
    25,972.47x = 38,927.94 × 11,920.68
  4. Step 4: Simplify right side
    25,972.47x = 464,047,515.80
  5. Step 5: Solve for x
    x = 464,047,515.80/25,972.47
  6. Step 6: Final answer
    x = 17,866.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.