Home / 21,083.79-29,095.34-11,652.15

Finding the Fourth Proportional to 21,083.79, 29,095.34 and 11,652.15

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Solution

The fourth proportional to 21,083.79, 29,095.34 and 11,652.15 is: 16,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.79 : 29,095.34 = 11,652.15 : x
  2. Step 2: Convert to fraction form
    21,083.79/29,095.34 = 11,652.15/x
  3. Step 3: Cross multiply
    21,083.79x = 29,095.34 × 11,652.15
  4. Step 4: Simplify right side
    21,083.79x = 339,023,207.72
  5. Step 5: Solve for x
    x = 339,023,207.72/21,083.79
  6. Step 6: Final answer
    x = 16,079.80

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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.