Home / 23,665.54-32,678.10-21,143.20

Finding the Fourth Proportional to 23,665.54, 32,678.10 and 21,143.20

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Solution

The fourth proportional to 23,665.54, 32,678.10 and 21,143.20 is: 29,195.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,665.54 : 32,678.10 = 21,143.20 : x
  2. Step 2: Convert to fraction form
    23,665.54/32,678.10 = 21,143.20/x
  3. Step 3: Cross multiply
    23,665.54x = 32,678.10 × 21,143.20
  4. Step 4: Simplify right side
    23,665.54x = 690,919,603.92
  5. Step 5: Solve for x
    x = 690,919,603.92/23,665.54
  6. Step 6: Final answer
    x = 29,195.18

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1.5x scale

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.