Home / 28,572.82-42,886.87-13,792.14

Finding the Fourth Proportional to 28,572.82, 42,886.87 and 13,792.14

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Solution

The fourth proportional to 28,572.82, 42,886.87 and 13,792.14 is: 20,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572.82 : 42,886.87 = 13,792.14 : x
  2. Step 2: Convert to fraction form
    28,572.82/42,886.87 = 13,792.14/x
  3. Step 3: Cross multiply
    28,572.82x = 42,886.87 × 13,792.14
  4. Step 4: Simplify right side
    28,572.82x = 591,501,715.20
  5. Step 5: Solve for x
    x = 591,501,715.20/28,572.82
  6. Step 6: Final answer
    x = 20,701.55

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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.