Home / 21,605.10-32,412.07-12,249.29

Finding the Fourth Proportional to 21,605.10, 32,412.07 and 12,249.29

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Solution

The fourth proportional to 21,605.10, 32,412.07 and 12,249.29 is: 18,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,605.10 : 32,412.07 = 12,249.29 : x
  2. Step 2: Convert to fraction form
    21,605.10/32,412.07 = 12,249.29/x
  3. Step 3: Cross multiply
    21,605.10x = 32,412.07 × 12,249.29
  4. Step 4: Simplify right side
    21,605.10x = 397,024,872.37
  5. Step 5: Solve for x
    x = 397,024,872.37/21,605.10
  6. Step 6: Final answer
    x = 18,376.45

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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.