Home / 28,192.59-42,299.96-11,560.59

Finding the Fourth Proportional to 28,192.59, 42,299.96 and 11,560.59

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Solution

The fourth proportional to 28,192.59, 42,299.96 and 11,560.59 is: 17,345.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.59 : 42,299.96 = 11,560.59 : x
  2. Step 2: Convert to fraction form
    28,192.59/42,299.96 = 11,560.59/x
  3. Step 3: Cross multiply
    28,192.59x = 42,299.96 × 11,560.59
  4. Step 4: Simplify right side
    28,192.59x = 489,012,436.77
  5. Step 5: Solve for x
    x = 489,012,436.77/28,192.59
  6. Step 6: Final answer
    x = 17,345.42

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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.