Home / 21,219.73-29,283.16-11,658.08

Finding the Fourth Proportional to 21,219.73, 29,283.16 and 11,658.08

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Solution

The fourth proportional to 21,219.73, 29,283.16 and 11,658.08 is: 16,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219.73 : 29,283.16 = 11,658.08 : x
  2. Step 2: Convert to fraction form
    21,219.73/29,283.16 = 11,658.08/x
  3. Step 3: Cross multiply
    21,219.73x = 29,283.16 × 11,658.08
  4. Step 4: Simplify right side
    21,219.73x = 341,385,421.93
  5. Step 5: Solve for x
    x = 341,385,421.93/21,219.73
  6. Step 6: Final answer
    x = 16,088.11

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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.