Home / 21,154.96-29,187.24-14,082.56

Finding the Fourth Proportional to 21,154.96, 29,187.24 and 14,082.56

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Solution

The fourth proportional to 21,154.96, 29,187.24 and 14,082.56 is: 19,429.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154.96 : 29,187.24 = 14,082.56 : x
  2. Step 2: Convert to fraction form
    21,154.96/29,187.24 = 14,082.56/x
  3. Step 3: Cross multiply
    21,154.96x = 29,187.24 × 14,082.56
  4. Step 4: Simplify right side
    21,154.96x = 411,031,058.53
  5. Step 5: Solve for x
    x = 411,031,058.53/21,154.96
  6. Step 6: Final answer
    x = 19,429.54

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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.