Home / 19,861.13-27,407.30-11,362.34

Finding the Fourth Proportional to 19,861.13, 27,407.30 and 11,362.34

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Solution

The fourth proportional to 19,861.13, 27,407.30 and 11,362.34 is: 15,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.13 : 27,407.30 = 11,362.34 : x
  2. Step 2: Convert to fraction form
    19,861.13/27,407.30 = 11,362.34/x
  3. Step 3: Cross multiply
    19,861.13x = 27,407.30 × 11,362.34
  4. Step 4: Simplify right side
    19,861.13x = 311,411,072.79
  5. Step 5: Solve for x
    x = 311,411,072.79/19,861.13
  6. Step 6: Final answer
    x = 15,679.42

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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.