Home / 21,824.64-32,780.70-16,905.24

Finding the Fourth Proportional to 21,824.64, 32,780.70 and 16,905.24

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Solution

The fourth proportional to 21,824.64, 32,780.70 and 16,905.24 is: 25,391.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,824.64 : 32,780.70 = 16,905.24 : x
  2. Step 2: Convert to fraction form
    21,824.64/32,780.70 = 16,905.24/x
  3. Step 3: Cross multiply
    21,824.64x = 32,780.70 × 16,905.24
  4. Step 4: Simplify right side
    21,824.64x = 554,165,600.87
  5. Step 5: Solve for x
    x = 554,165,600.87/21,824.64
  6. Step 6: Final answer
    x = 25,391.74

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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.