Home / 19,355.40-29,010.42-8,945.28

Finding the Fourth Proportional to 19,355.40, 29,010.42 and 8,945.28

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Solution

The fourth proportional to 19,355.40, 29,010.42 and 8,945.28 is: 13,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.40 : 29,010.42 = 8,945.28 : x
  2. Step 2: Convert to fraction form
    19,355.40/29,010.42 = 8,945.28/x
  3. Step 3: Cross multiply
    19,355.40x = 29,010.42 × 8,945.28
  4. Step 4: Simplify right side
    19,355.40x = 259,506,329.82
  5. Step 5: Solve for x
    x = 259,506,329.82/19,355.40
  6. Step 6: Final answer
    x = 13,407.44

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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.