Home / 19,445.78-29,156.11-10,678.34

Finding the Fourth Proportional to 19,445.78, 29,156.11 and 10,678.34

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Solution

The fourth proportional to 19,445.78, 29,156.11 and 10,678.34 is: 16,010.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.78 : 29,156.11 = 10,678.34 : x
  2. Step 2: Convert to fraction form
    19,445.78/29,156.11 = 10,678.34/x
  3. Step 3: Cross multiply
    19,445.78x = 29,156.11 × 10,678.34
  4. Step 4: Simplify right side
    19,445.78x = 311,338,855.66
  5. Step 5: Solve for x
    x = 311,338,855.66/19,445.78
  6. Step 6: Final answer
    x = 16,010.61

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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.