Home / 21,860.64-32,813.28-15,999.84

Finding the Fourth Proportional to 21,860.64, 32,813.28 and 15,999.84

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Solution

The fourth proportional to 21,860.64, 32,813.28 and 15,999.84 is: 24,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860.64 : 32,813.28 = 15,999.84 : x
  2. Step 2: Convert to fraction form
    21,860.64/32,813.28 = 15,999.84/x
  3. Step 3: Cross multiply
    21,860.64x = 32,813.28 × 15,999.84
  4. Step 4: Simplify right side
    21,860.64x = 525,007,229.88
  5. Step 5: Solve for x
    x = 525,007,229.88/21,860.64
  6. Step 6: Final answer
    x = 24,016.10

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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.