Home / 28,209.53-42,314.36-11,566.59

Finding the Fourth Proportional to 28,209.53, 42,314.36 and 11,566.59

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Solution

The fourth proportional to 28,209.53, 42,314.36 and 11,566.59 is: 17,349.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.53 : 42,314.36 = 11,566.59 : x
  2. Step 2: Convert to fraction form
    28,209.53/42,314.36 = 11,566.59/x
  3. Step 3: Cross multiply
    28,209.53x = 42,314.36 × 11,566.59
  4. Step 4: Simplify right side
    28,209.53x = 489,432,795.40
  5. Step 5: Solve for x
    x = 489,432,795.40/28,209.53
  6. Step 6: Final answer
    x = 17,349.91

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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.