Home / 21,372.24-32,060.95-8,900.72

Finding the Fourth Proportional to 21,372.24, 32,060.95 and 8,900.72

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Solution

The fourth proportional to 21,372.24, 32,060.95 and 8,900.72 is: 13,352.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372.24 : 32,060.95 = 8,900.72 : x
  2. Step 2: Convert to fraction form
    21,372.24/32,060.95 = 8,900.72/x
  3. Step 3: Cross multiply
    21,372.24x = 32,060.95 × 8,900.72
  4. Step 4: Simplify right side
    21,372.24x = 285,365,538.88
  5. Step 5: Solve for x
    x = 285,365,538.88/21,372.24
  6. Step 6: Final answer
    x = 13,352.16

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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.