Home / 21,254.80-29,301.18-14,178.64

Finding the Fourth Proportional to 21,254.80, 29,301.18 and 14,178.64

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Solution

The fourth proportional to 21,254.80, 29,301.18 and 14,178.64 is: 19,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.80 : 29,301.18 = 14,178.64 : x
  2. Step 2: Convert to fraction form
    21,254.80/29,301.18 = 14,178.64/x
  3. Step 3: Cross multiply
    21,254.80x = 29,301.18 × 14,178.64
  4. Step 4: Simplify right side
    21,254.80x = 415,450,882.80
  5. Step 5: Solve for x
    x = 415,450,882.80/21,254.80
  6. Step 6: Final answer
    x = 19,546.21

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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.