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Finding the Fourth Proportional to 22,044, 30,422.88 and 13,663.20

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Solution

The fourth proportional to 22,044, 30,422.88 and 13,663.20 is: 18,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,044 : 30,422.88 = 13,663.20 : x
  2. Step 2: Convert to fraction form
    22,044/30,422.88 = 13,663.20/x
  3. Step 3: Cross multiply
    22,044x = 30,422.88 × 13,663.20
  4. Step 4: Simplify right side
    22,044x = 415,673,894.02
  5. Step 5: Solve for x
    x = 415,673,894.02/22,044
  6. Step 6: Final answer
    x = 18,856.55

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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.