Home / 21,972.99-30,314.36-16,244.21

Finding the Fourth Proportional to 21,972.99, 30,314.36 and 16,244.21

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Solution

The fourth proportional to 21,972.99, 30,314.36 and 16,244.21 is: 22,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.99 : 30,314.36 = 16,244.21 : x
  2. Step 2: Convert to fraction form
    21,972.99/30,314.36 = 16,244.21/x
  3. Step 3: Cross multiply
    21,972.99x = 30,314.36 × 16,244.21
  4. Step 4: Simplify right side
    21,972.99x = 492,432,718.89
  5. Step 5: Solve for x
    x = 492,432,718.89/21,972.99
  6. Step 6: Final answer
    x = 22,410.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.