Home / 25,483.54-38,207.86-12,979.36

Finding the Fourth Proportional to 25,483.54, 38,207.86 and 12,979.36

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Solution

The fourth proportional to 25,483.54, 38,207.86 and 12,979.36 is: 19,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,483.54 : 38,207.86 = 12,979.36 : x
  2. Step 2: Convert to fraction form
    25,483.54/38,207.86 = 12,979.36/x
  3. Step 3: Cross multiply
    25,483.54x = 38,207.86 × 12,979.36
  4. Step 4: Simplify right side
    25,483.54x = 495,913,569.77
  5. Step 5: Solve for x
    x = 495,913,569.77/25,483.54
  6. Step 6: Final answer
    x = 19,460.15

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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.