Home / 19,360.72-29,047.56-7,677.28

Finding the Fourth Proportional to 19,360.72, 29,047.56 and 7,677.28

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Solution

The fourth proportional to 19,360.72, 29,047.56 and 7,677.28 is: 11,518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,360.72 : 29,047.56 = 7,677.28 : x
  2. Step 2: Convert to fraction form
    19,360.72/29,047.56 = 7,677.28/x
  3. Step 3: Cross multiply
    19,360.72x = 29,047.56 × 7,677.28
  4. Step 4: Simplify right side
    19,360.72x = 223,006,251.44
  5. Step 5: Solve for x
    x = 223,006,251.44/19,360.72
  6. Step 6: Final answer
    x = 11,518.49

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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.