Home / 27,123.08-40,680.40-10,490.80

Finding the Fourth Proportional to 27,123.08, 40,680.40 and 10,490.80

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Solution

The fourth proportional to 27,123.08, 40,680.40 and 10,490.80 is: 15,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,123.08 : 40,680.40 = 10,490.80 : x
  2. Step 2: Convert to fraction form
    27,123.08/40,680.40 = 10,490.80/x
  3. Step 3: Cross multiply
    27,123.08x = 40,680.40 × 10,490.80
  4. Step 4: Simplify right side
    27,123.08x = 426,769,940.32
  5. Step 5: Solve for x
    x = 426,769,940.32/27,123.08
  6. Step 6: Final answer
    x = 15,734.57

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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.