Home / 21,177.84-29,225.22-11,617.53

Finding the Fourth Proportional to 21,177.84, 29,225.22 and 11,617.53

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Solution

The fourth proportional to 21,177.84, 29,225.22 and 11,617.53 is: 16,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.84 : 29,225.22 = 11,617.53 : x
  2. Step 2: Convert to fraction form
    21,177.84/29,225.22 = 11,617.53/x
  3. Step 3: Cross multiply
    21,177.84x = 29,225.22 × 11,617.53
  4. Step 4: Simplify right side
    21,177.84x = 339,524,870.11
  5. Step 5: Solve for x
    x = 339,524,870.11/21,177.84
  6. Step 6: Final answer
    x = 16,032.08

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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.