Home / 21,110.27-29,130.89-11,548.35

Finding the Fourth Proportional to 21,110.27, 29,130.89 and 11,548.35

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Solution

The fourth proportional to 21,110.27, 29,130.89 and 11,548.35 is: 15,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.27 : 29,130.89 = 11,548.35 : x
  2. Step 2: Convert to fraction form
    21,110.27/29,130.89 = 11,548.35/x
  3. Step 3: Cross multiply
    21,110.27x = 29,130.89 × 11,548.35
  4. Step 4: Simplify right side
    21,110.27x = 336,413,655.79
  5. Step 5: Solve for x
    x = 336,413,655.79/21,110.27
  6. Step 6: Final answer
    x = 15,936.02

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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.