Home / 21,217.73-29,280.41-11,656.08

Finding the Fourth Proportional to 21,217.73, 29,280.41 and 11,656.08

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Solution

The fourth proportional to 21,217.73, 29,280.41 and 11,656.08 is: 16,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217.73 : 29,280.41 = 11,656.08 : x
  2. Step 2: Convert to fraction form
    21,217.73/29,280.41 = 11,656.08/x
  3. Step 3: Cross multiply
    21,217.73x = 29,280.41 × 11,656.08
  4. Step 4: Simplify right side
    21,217.73x = 341,294,743.11
  5. Step 5: Solve for x
    x = 341,294,743.11/21,217.73
  6. Step 6: Final answer
    x = 16,085.36

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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.