Home / 21,447.08-29,587.08-13,895.94

Finding the Fourth Proportional to 21,447.08, 29,587.08 and 13,895.94

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Solution

The fourth proportional to 21,447.08, 29,587.08 and 13,895.94 is: 19,169.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.08 : 29,587.08 = 13,895.94 : x
  2. Step 2: Convert to fraction form
    21,447.08/29,587.08 = 13,895.94/x
  3. Step 3: Cross multiply
    21,447.08x = 29,587.08 × 13,895.94
  4. Step 4: Simplify right side
    21,447.08x = 411,140,288.46
  5. Step 5: Solve for x
    x = 411,140,288.46/21,447.08
  6. Step 6: Final answer
    x = 19,169.99

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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.