Home / 21,963.16-30,301.50-15,247

Finding the Fourth Proportional to 21,963.16, 30,301.50 and 15,247

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Solution

The fourth proportional to 21,963.16, 30,301.50 and 15,247 is: 21,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.16 : 30,301.50 = 15,247 : x
  2. Step 2: Convert to fraction form
    21,963.16/30,301.50 = 15,247/x
  3. Step 3: Cross multiply
    21,963.16x = 30,301.50 × 15,247
  4. Step 4: Simplify right side
    21,963.16x = 462,006,970.50
  5. Step 5: Solve for x
    x = 462,006,970.50/21,963.16
  6. Step 6: Final answer
    x = 21,035.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.