Home / 28,206.65-42,310.02-11,563.72

Finding the Fourth Proportional to 28,206.65, 42,310.02 and 11,563.72

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Solution

The fourth proportional to 28,206.65, 42,310.02 and 11,563.72 is: 17,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.65 : 42,310.02 = 11,563.72 : x
  2. Step 2: Convert to fraction form
    28,206.65/42,310.02 = 11,563.72/x
  3. Step 3: Cross multiply
    28,206.65x = 42,310.02 × 11,563.72
  4. Step 4: Simplify right side
    28,206.65x = 489,261,224.47
  5. Step 5: Solve for x
    x = 489,261,224.47/28,206.65
  6. Step 6: Final answer
    x = 17,345.60

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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.