Home / 21,434.04-29,577.96-11,874.72

Finding the Fourth Proportional to 21,434.04, 29,577.96 and 11,874.72

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Solution

The fourth proportional to 21,434.04, 29,577.96 and 11,874.72 is: 16,386.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.04 : 29,577.96 = 11,874.72 : x
  2. Step 2: Convert to fraction form
    21,434.04/29,577.96 = 11,874.72/x
  3. Step 3: Cross multiply
    21,434.04x = 29,577.96 × 11,874.72
  4. Step 4: Simplify right side
    21,434.04x = 351,229,993.17
  5. Step 5: Solve for x
    x = 351,229,993.17/21,434.04
  6. Step 6: Final answer
    x = 16,386.55

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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.