Home / 21,267.95-29,349.49-11,836.51

Finding the Fourth Proportional to 21,267.95, 29,349.49 and 11,836.51

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Solution

The fourth proportional to 21,267.95, 29,349.49 and 11,836.51 is: 16,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.95 : 29,349.49 = 11,836.51 : x
  2. Step 2: Convert to fraction form
    21,267.95/29,349.49 = 11,836.51/x
  3. Step 3: Cross multiply
    21,267.95x = 29,349.49 × 11,836.51
  4. Step 4: Simplify right side
    21,267.95x = 347,395,472.70
  5. Step 5: Solve for x
    x = 347,395,472.70/21,267.95
  6. Step 6: Final answer
    x = 16,334.22

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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.