Home / 21,724.34-29,964.11-19,937.59

Finding the Fourth Proportional to 21,724.34, 29,964.11 and 19,937.59

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Solution

The fourth proportional to 21,724.34, 29,964.11 and 19,937.59 is: 27,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.34 : 29,964.11 = 19,937.59 : x
  2. Step 2: Convert to fraction form
    21,724.34/29,964.11 = 19,937.59/x
  3. Step 3: Cross multiply
    21,724.34x = 29,964.11 × 19,937.59
  4. Step 4: Simplify right side
    21,724.34x = 597,411,965.30
  5. Step 5: Solve for x
    x = 597,411,965.30/21,724.34
  6. Step 6: Final answer
    x = 27,499.67

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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.