Home / 19,666.15-29,474.58-15,489.66

Finding the Fourth Proportional to 19,666.15, 29,474.58 and 15,489.66

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Solution

The fourth proportional to 19,666.15, 29,474.58 and 15,489.66 is: 23,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.15 : 29,474.58 = 15,489.66 : x
  2. Step 2: Convert to fraction form
    19,666.15/29,474.58 = 15,489.66/x
  3. Step 3: Cross multiply
    19,666.15x = 29,474.58 × 15,489.66
  4. Step 4: Simplify right side
    19,666.15x = 456,551,170.40
  5. Step 5: Solve for x
    x = 456,551,170.40/19,666.15
  6. Step 6: Final answer
    x = 23,215.08

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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.