Home / 19,761.96-27,271.11-10,809.42

Finding the Fourth Proportional to 19,761.96, 27,271.11 and 10,809.42

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Solution

The fourth proportional to 19,761.96, 27,271.11 and 10,809.42 is: 14,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.96 : 27,271.11 = 10,809.42 : x
  2. Step 2: Convert to fraction form
    19,761.96/27,271.11 = 10,809.42/x
  3. Step 3: Cross multiply
    19,761.96x = 27,271.11 × 10,809.42
  4. Step 4: Simplify right side
    19,761.96x = 294,784,881.86
  5. Step 5: Solve for x
    x = 294,784,881.86/19,761.96
  6. Step 6: Final answer
    x = 14,916.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.