Home / 21,537.66-32,311.35-13,212.48

Finding the Fourth Proportional to 21,537.66, 32,311.35 and 13,212.48

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Solution

The fourth proportional to 21,537.66, 32,311.35 and 13,212.48 is: 19,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,537.66 : 32,311.35 = 13,212.48 : x
  2. Step 2: Convert to fraction form
    21,537.66/32,311.35 = 13,212.48/x
  3. Step 3: Cross multiply
    21,537.66x = 32,311.35 × 13,212.48
  4. Step 4: Simplify right side
    21,537.66x = 426,913,065.65
  5. Step 5: Solve for x
    x = 426,913,065.65/21,537.66
  6. Step 6: Final answer
    x = 19,821.70

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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.