Home / 20,510.30-30,743.92-11,614.51

Finding the Fourth Proportional to 20,510.30, 30,743.92 and 11,614.51

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Solution

The fourth proportional to 20,510.30, 30,743.92 and 11,614.51 is: 17,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.30 : 30,743.92 = 11,614.51 : x
  2. Step 2: Convert to fraction form
    20,510.30/30,743.92 = 11,614.51/x
  3. Step 3: Cross multiply
    20,510.30x = 30,743.92 × 11,614.51
  4. Step 4: Simplify right side
    20,510.30x = 357,075,535.64
  5. Step 5: Solve for x
    x = 357,075,535.64/20,510.30
  6. Step 6: Final answer
    x = 17,409.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.