Home / 21,821.02-32,709.12-12,441.85

Finding the Fourth Proportional to 21,821.02, 32,709.12 and 12,441.85

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Solution

The fourth proportional to 21,821.02, 32,709.12 and 12,441.85 is: 18,650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.02 : 32,709.12 = 12,441.85 : x
  2. Step 2: Convert to fraction form
    21,821.02/32,709.12 = 12,441.85/x
  3. Step 3: Cross multiply
    21,821.02x = 32,709.12 × 12,441.85
  4. Step 4: Simplify right side
    21,821.02x = 406,961,964.67
  5. Step 5: Solve for x
    x = 406,961,964.67/21,821.02
  6. Step 6: Final answer
    x = 18,650.00

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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.