Home / 21,734.40-32,623.20-10,653.60

Finding the Fourth Proportional to 21,734.40, 32,623.20 and 10,653.60

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Solution

The fourth proportional to 21,734.40, 32,623.20 and 10,653.60 is: 15,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,734.40 : 32,623.20 = 10,653.60 : x
  2. Step 2: Convert to fraction form
    21,734.40/32,623.20 = 10,653.60/x
  3. Step 3: Cross multiply
    21,734.40x = 32,623.20 × 10,653.60
  4. Step 4: Simplify right side
    21,734.40x = 347,554,523.52
  5. Step 5: Solve for x
    x = 347,554,523.52/21,734.40
  6. Step 6: Final answer
    x = 15,990.99

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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.