Home / 26,702.46-40,055.76-7,981.20

Finding the Fourth Proportional to 26,702.46, 40,055.76 and 7,981.20

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Solution

The fourth proportional to 26,702.46, 40,055.76 and 7,981.20 is: 11,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,702.46 : 40,055.76 = 7,981.20 : x
  2. Step 2: Convert to fraction form
    26,702.46/40,055.76 = 7,981.20/x
  3. Step 3: Cross multiply
    26,702.46x = 40,055.76 × 7,981.20
  4. Step 4: Simplify right side
    26,702.46x = 319,693,031.71
  5. Step 5: Solve for x
    x = 319,693,031.71/26,702.46
  6. Step 6: Final answer
    x = 11,972.42

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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.