Home / 21,977.64-30,327.68-13,592.52

Finding the Fourth Proportional to 21,977.64, 30,327.68 and 13,592.52

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Solution

The fourth proportional to 21,977.64, 30,327.68 and 13,592.52 is: 18,756.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,977.64 : 30,327.68 = 13,592.52 : x
  2. Step 2: Convert to fraction form
    21,977.64/30,327.68 = 13,592.52/x
  3. Step 3: Cross multiply
    21,977.64x = 30,327.68 × 13,592.52
  4. Step 4: Simplify right side
    21,977.64x = 412,229,596.95
  5. Step 5: Solve for x
    x = 412,229,596.95/21,977.64
  6. Step 6: Final answer
    x = 18,756.77

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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.