Home / 21,372.87-32,066.33-10,278.13

Finding the Fourth Proportional to 21,372.87, 32,066.33 and 10,278.13

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Solution

The fourth proportional to 21,372.87, 32,066.33 and 10,278.13 is: 15,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.87 : 32,066.33 = 10,278.13 : x
  2. Step 2: Convert to fraction form
    21,372.87/32,066.33 = 10,278.13/x
  3. Step 3: Cross multiply
    21,372.87x = 32,066.33 × 10,278.13
  4. Step 4: Simplify right side
    21,372.87x = 329,581,908.36
  5. Step 5: Solve for x
    x = 329,581,908.36/21,372.87
  6. Step 6: Final answer
    x = 15,420.57

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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.