Home / 28,837.89-43,281.15-11,320.02

Finding the Fourth Proportional to 28,837.89, 43,281.15 and 11,320.02

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Solution

The fourth proportional to 28,837.89, 43,281.15 and 11,320.02 is: 16,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,837.89 : 43,281.15 = 11,320.02 : x
  2. Step 2: Convert to fraction form
    28,837.89/43,281.15 = 11,320.02/x
  3. Step 3: Cross multiply
    28,837.89x = 43,281.15 × 11,320.02
  4. Step 4: Simplify right side
    28,837.89x = 489,943,483.62
  5. Step 5: Solve for x
    x = 489,943,483.62/28,837.89
  6. Step 6: Final answer
    x = 16,989.57

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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.