Home / 21,589.73-32,270.68-18,756.35

Finding the Fourth Proportional to 21,589.73, 32,270.68 and 18,756.35

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Solution

The fourth proportional to 21,589.73, 32,270.68 and 18,756.35 is: 28,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,589.73 : 32,270.68 = 18,756.35 : x
  2. Step 2: Convert to fraction form
    21,589.73/32,270.68 = 18,756.35/x
  3. Step 3: Cross multiply
    21,589.73x = 32,270.68 × 18,756.35
  4. Step 4: Simplify right side
    21,589.73x = 605,280,168.82
  5. Step 5: Solve for x
    x = 605,280,168.82/21,589.73
  6. Step 6: Final answer
    x = 28,035.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.