Home / 19,875.67-27,422.43-11,914.99

Finding the Fourth Proportional to 19,875.67, 27,422.43 and 11,914.99

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Solution

The fourth proportional to 19,875.67, 27,422.43 and 11,914.99 is: 16,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.67 : 27,422.43 = 11,914.99 : x
  2. Step 2: Convert to fraction form
    19,875.67/27,422.43 = 11,914.99/x
  3. Step 3: Cross multiply
    19,875.67x = 27,422.43 × 11,914.99
  4. Step 4: Simplify right side
    19,875.67x = 326,737,979.23
  5. Step 5: Solve for x
    x = 326,737,979.23/19,875.67
  6. Step 6: Final answer
    x = 16,439.09

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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.