Home / 21,923.64-32,822.10-13,578.39

Finding the Fourth Proportional to 21,923.64, 32,822.10 and 13,578.39

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Solution

The fourth proportional to 21,923.64, 32,822.10 and 13,578.39 is: 20,328.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.64 : 32,822.10 = 13,578.39 : x
  2. Step 2: Convert to fraction form
    21,923.64/32,822.10 = 13,578.39/x
  3. Step 3: Cross multiply
    21,923.64x = 32,822.10 × 13,578.39
  4. Step 4: Simplify right side
    21,923.64x = 445,671,274.42
  5. Step 5: Solve for x
    x = 445,671,274.42/21,923.64
  6. Step 6: Final answer
    x = 20,328.34

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1.5x scale

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.