Home / 21,020.01-29,006.15-11,822.94

Finding the Fourth Proportional to 21,020.01, 29,006.15 and 11,822.94

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Solution

The fourth proportional to 21,020.01, 29,006.15 and 11,822.94 is: 16,314.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.01 : 29,006.15 = 11,822.94 : x
  2. Step 2: Convert to fraction form
    21,020.01/29,006.15 = 11,822.94/x
  3. Step 3: Cross multiply
    21,020.01x = 29,006.15 × 11,822.94
  4. Step 4: Simplify right side
    21,020.01x = 342,937,971.08
  5. Step 5: Solve for x
    x = 342,937,971.08/21,020.01
  6. Step 6: Final answer
    x = 16,314.83

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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.