Home / 21,380.10-32,054.97-15,379.74

Finding the Fourth Proportional to 21,380.10, 32,054.97 and 15,379.74

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Solution

The fourth proportional to 21,380.10, 32,054.97 and 15,379.74 is: 23,058.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.10 : 32,054.97 = 15,379.74 : x
  2. Step 2: Convert to fraction form
    21,380.10/32,054.97 = 15,379.74/x
  3. Step 3: Cross multiply
    21,380.10x = 32,054.97 × 15,379.74
  4. Step 4: Simplify right side
    21,380.10x = 492,997,104.31
  5. Step 5: Solve for x
    x = 492,997,104.31/21,380.10
  6. Step 6: Final answer
    x = 23,058.69

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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.