Home / 25,970.93-38,960.49-8,436.66

Finding the Fourth Proportional to 25,970.93, 38,960.49 and 8,436.66

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Solution

The fourth proportional to 25,970.93, 38,960.49 and 8,436.66 is: 12,656.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,970.93 : 38,960.49 = 8,436.66 : x
  2. Step 2: Convert to fraction form
    25,970.93/38,960.49 = 8,436.66/x
  3. Step 3: Cross multiply
    25,970.93x = 38,960.49 × 8,436.66
  4. Step 4: Simplify right side
    25,970.93x = 328,696,293.10
  5. Step 5: Solve for x
    x = 328,696,293.10/25,970.93
  6. Step 6: Final answer
    x = 12,656.32

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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.