Home / 21,089.43-29,101.95-11,657.25

Finding the Fourth Proportional to 21,089.43, 29,101.95 and 11,657.25

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Solution

The fourth proportional to 21,089.43, 29,101.95 and 11,657.25 is: 16,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.43 : 29,101.95 = 11,657.25 : x
  2. Step 2: Convert to fraction form
    21,089.43/29,101.95 = 11,657.25/x
  3. Step 3: Cross multiply
    21,089.43x = 29,101.95 × 11,657.25
  4. Step 4: Simplify right side
    21,089.43x = 339,248,706.64
  5. Step 5: Solve for x
    x = 339,248,706.64/21,089.43
  6. Step 6: Final answer
    x = 16,086.20

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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.