Home / 19,883.14-27,438.50-10,808.30

Finding the Fourth Proportional to 19,883.14, 27,438.50 and 10,808.30

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Solution

The fourth proportional to 19,883.14, 27,438.50 and 10,808.30 is: 14,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.14 : 27,438.50 = 10,808.30 : x
  2. Step 2: Convert to fraction form
    19,883.14/27,438.50 = 10,808.30/x
  3. Step 3: Cross multiply
    19,883.14x = 27,438.50 × 10,808.30
  4. Step 4: Simplify right side
    19,883.14x = 296,563,539.55
  5. Step 5: Solve for x
    x = 296,563,539.55/19,883.14
  6. Step 6: Final answer
    x = 14,915.33

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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.