Home / 21,269.93-31,856.33-10,184.45

Finding the Fourth Proportional to 21,269.93, 31,856.33 and 10,184.45

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Solution

The fourth proportional to 21,269.93, 31,856.33 and 10,184.45 is: 15,253.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.93 : 31,856.33 = 10,184.45 : x
  2. Step 2: Convert to fraction form
    21,269.93/31,856.33 = 10,184.45/x
  3. Step 3: Cross multiply
    21,269.93x = 31,856.33 × 10,184.45
  4. Step 4: Simplify right side
    21,269.93x = 324,439,066.25
  5. Step 5: Solve for x
    x = 324,439,066.25/21,269.93
  6. Step 6: Final answer
    x = 15,253.42

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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.