Home / 28,216.73-42,319.02-11,560.43

Finding the Fourth Proportional to 28,216.73, 42,319.02 and 11,560.43

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Solution

The fourth proportional to 28,216.73, 42,319.02 and 11,560.43 is: 17,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,216.73 : 42,319.02 = 11,560.43 : x
  2. Step 2: Convert to fraction form
    28,216.73/42,319.02 = 11,560.43/x
  3. Step 3: Cross multiply
    28,216.73x = 42,319.02 × 11,560.43
  4. Step 4: Simplify right side
    28,216.73x = 489,226,068.38
  5. Step 5: Solve for x
    x = 489,226,068.38/28,216.73
  6. Step 6: Final answer
    x = 17,338.16

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1.5x scale

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.