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Finding the Fourth Proportional to 27,123.30, 40,672.80 and 10,477.80

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Solution

The fourth proportional to 27,123.30, 40,672.80 and 10,477.80 is: 15,712.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,123.30 : 40,672.80 = 10,477.80 : x
  2. Step 2: Convert to fraction form
    27,123.30/40,672.80 = 10,477.80/x
  3. Step 3: Cross multiply
    27,123.30x = 40,672.80 × 10,477.80
  4. Step 4: Simplify right side
    27,123.30x = 426,161,463.84
  5. Step 5: Solve for x
    x = 426,161,463.84/27,123.30
  6. Step 6: Final answer
    x = 15,712.01

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1.5x scale

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.