Home / 21,830.16-32,696.01-15,285.56

Finding the Fourth Proportional to 21,830.16, 32,696.01 and 15,285.56

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Solution

The fourth proportional to 21,830.16, 32,696.01 and 15,285.56 is: 22,893.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,830.16 : 32,696.01 = 15,285.56 : x
  2. Step 2: Convert to fraction form
    21,830.16/32,696.01 = 15,285.56/x
  3. Step 3: Cross multiply
    21,830.16x = 32,696.01 × 15,285.56
  4. Step 4: Simplify right side
    21,830.16x = 499,776,866.14
  5. Step 5: Solve for x
    x = 499,776,866.14/21,830.16
  6. Step 6: Final answer
    x = 22,893.87

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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.