Home / 19,701.48-27,181.18-12,631.80

Finding the Fourth Proportional to 19,701.48, 27,181.18 and 12,631.80

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Solution

The fourth proportional to 19,701.48, 27,181.18 and 12,631.80 is: 17,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.48 : 27,181.18 = 12,631.80 : x
  2. Step 2: Convert to fraction form
    19,701.48/27,181.18 = 12,631.80/x
  3. Step 3: Cross multiply
    19,701.48x = 27,181.18 × 12,631.80
  4. Step 4: Simplify right side
    19,701.48x = 343,347,229.52
  5. Step 5: Solve for x
    x = 343,347,229.52/19,701.48
  6. Step 6: Final answer
    x = 17,427.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.