Home / 21,082.61-29,034.75-20,623.34

Finding the Fourth Proportional to 21,082.61, 29,034.75 and 20,623.34

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Solution

The fourth proportional to 21,082.61, 29,034.75 and 20,623.34 is: 28,402.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082.61 : 29,034.75 = 20,623.34 : x
  2. Step 2: Convert to fraction form
    21,082.61/29,034.75 = 20,623.34/x
  3. Step 3: Cross multiply
    21,082.61x = 29,034.75 × 20,623.34
  4. Step 4: Simplify right side
    21,082.61x = 598,793,670.99
  5. Step 5: Solve for x
    x = 598,793,670.99/21,082.61
  6. Step 6: Final answer
    x = 28,402.25

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.