Home / 21,827.76-32,741.40-13,065.12

Finding the Fourth Proportional to 21,827.76, 32,741.40 and 13,065.12

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Solution

The fourth proportional to 21,827.76, 32,741.40 and 13,065.12 is: 19,597.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827.76 : 32,741.40 = 13,065.12 : x
  2. Step 2: Convert to fraction form
    21,827.76/32,741.40 = 13,065.12/x
  3. Step 3: Cross multiply
    21,827.76x = 32,741.40 × 13,065.12
  4. Step 4: Simplify right side
    21,827.76x = 427,770,319.97
  5. Step 5: Solve for x
    x = 427,770,319.97/21,827.76
  6. Step 6: Final answer
    x = 19,597.54

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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.