Home / 21,623.50-32,383-10,502.74

Finding the Fourth Proportional to 21,623.50, 32,383 and 10,502.74

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Solution

The fourth proportional to 21,623.50, 32,383 and 10,502.74 is: 15,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.50 : 32,383 = 10,502.74 : x
  2. Step 2: Convert to fraction form
    21,623.50/32,383 = 10,502.74/x
  3. Step 3: Cross multiply
    21,623.50x = 32,383 × 10,502.74
  4. Step 4: Simplify right side
    21,623.50x = 340,110,229.42
  5. Step 5: Solve for x
    x = 340,110,229.42/21,623.50
  6. Step 6: Final answer
    x = 15,728.73

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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.