Home / 21,860.28-32,790.42-9,372.24

Finding the Fourth Proportional to 21,860.28, 32,790.42 and 9,372.24

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Solution

The fourth proportional to 21,860.28, 32,790.42 and 9,372.24 is: 14,058.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860.28 : 32,790.42 = 9,372.24 : x
  2. Step 2: Convert to fraction form
    21,860.28/32,790.42 = 9,372.24/x
  3. Step 3: Cross multiply
    21,860.28x = 32,790.42 × 9,372.24
  4. Step 4: Simplify right side
    21,860.28x = 307,319,685.94
  5. Step 5: Solve for x
    x = 307,319,685.94/21,860.28
  6. Step 6: Final answer
    x = 14,058.36

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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.