Home / 21,646.23-32,468.58-8,315.79

Finding the Fourth Proportional to 21,646.23, 32,468.58 and 8,315.79

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Solution

The fourth proportional to 21,646.23, 32,468.58 and 8,315.79 is: 12,473.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,646.23 : 32,468.58 = 8,315.79 : x
  2. Step 2: Convert to fraction form
    21,646.23/32,468.58 = 8,315.79/x
  3. Step 3: Cross multiply
    21,646.23x = 32,468.58 × 8,315.79
  4. Step 4: Simplify right side
    21,646.23x = 270,001,892.88
  5. Step 5: Solve for x
    x = 270,001,892.88/21,646.23
  6. Step 6: Final answer
    x = 12,473.39

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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.