Home / 21,437.79-29,584.11-13,054.29

Finding the Fourth Proportional to 21,437.79, 29,584.11 and 13,054.29

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Solution

The fourth proportional to 21,437.79, 29,584.11 and 13,054.29 is: 18,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.79 : 29,584.11 = 13,054.29 : x
  2. Step 2: Convert to fraction form
    21,437.79/29,584.11 = 13,054.29/x
  3. Step 3: Cross multiply
    21,437.79x = 29,584.11 × 13,054.29
  4. Step 4: Simplify right side
    21,437.79x = 386,199,551.33
  5. Step 5: Solve for x
    x = 386,199,551.33/21,437.79
  6. Step 6: Final answer
    x = 18,014.90

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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.