Home / 28,021.65-41,988.68-17,611.53

Finding the Fourth Proportional to 28,021.65, 41,988.68 and 17,611.53

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Solution

The fourth proportional to 28,021.65, 41,988.68 and 17,611.53 is: 26,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.65 : 41,988.68 = 17,611.53 : x
  2. Step 2: Convert to fraction form
    28,021.65/41,988.68 = 17,611.53/x
  3. Step 3: Cross multiply
    28,021.65x = 41,988.68 × 17,611.53
  4. Step 4: Simplify right side
    28,021.65x = 739,484,718.01
  5. Step 5: Solve for x
    x = 739,484,718.01/28,021.65
  6. Step 6: Final answer
    x = 26,389.77

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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.