Home / 21,261.65-32,016.08-15,754.05

Finding the Fourth Proportional to 21,261.65, 32,016.08 and 15,754.05

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Solution

The fourth proportional to 21,261.65, 32,016.08 and 15,754.05 is: 23,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261.65 : 32,016.08 = 15,754.05 : x
  2. Step 2: Convert to fraction form
    21,261.65/32,016.08 = 15,754.05/x
  3. Step 3: Cross multiply
    21,261.65x = 32,016.08 × 15,754.05
  4. Step 4: Simplify right side
    21,261.65x = 504,382,964.51
  5. Step 5: Solve for x
    x = 504,382,964.51/21,261.65
  6. Step 6: Final answer
    x = 23,722.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.