Home / 21,335.84-29,443.26-11,775.81

Finding the Fourth Proportional to 21,335.84, 29,443.26 and 11,775.81

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Solution

The fourth proportional to 21,335.84, 29,443.26 and 11,775.81 is: 16,250.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335.84 : 29,443.26 = 11,775.81 : x
  2. Step 2: Convert to fraction form
    21,335.84/29,443.26 = 11,775.81/x
  3. Step 3: Cross multiply
    21,335.84x = 29,443.26 × 11,775.81
  4. Step 4: Simplify right side
    21,335.84x = 346,718,235.54
  5. Step 5: Solve for x
    x = 346,718,235.54/21,335.84
  6. Step 6: Final answer
    x = 16,250.51

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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.