Home / 25,483.79-38,208.24-12,979.61

Finding the Fourth Proportional to 25,483.79, 38,208.24 and 12,979.61

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Solution

The fourth proportional to 25,483.79, 38,208.24 and 12,979.61 is: 19,460.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,483.79 : 38,208.24 = 12,979.61 : x
  2. Step 2: Convert to fraction form
    25,483.79/38,208.24 = 12,979.61/x
  3. Step 3: Cross multiply
    25,483.79x = 38,208.24 × 12,979.61
  4. Step 4: Simplify right side
    25,483.79x = 495,928,053.99
  5. Step 5: Solve for x
    x = 495,928,053.99/25,483.79
  6. Step 6: Final answer
    x = 19,460.53

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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.