Home / 15,211.31-22,816.80-4,681.31

Finding the Fourth Proportional to 15,211.31, 22,816.80 and 4,681.31

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Solution

The fourth proportional to 15,211.31, 22,816.80 and 4,681.31 is: 7,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.31 : 22,816.80 = 4,681.31 : x
  2. Step 2: Convert to fraction form
    15,211.31/22,816.80 = 4,681.31/x
  3. Step 3: Cross multiply
    15,211.31x = 22,816.80 × 4,681.31
  4. Step 4: Simplify right side
    15,211.31x = 106,812,399.92
  5. Step 5: Solve for x
    x = 106,812,399.92/15,211.31
  6. Step 6: Final answer
    x = 7,021.91

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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.