Home / 19,988.34-27,584.73-12,439.14

Finding the Fourth Proportional to 19,988.34, 27,584.73 and 12,439.14

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Solution

The fourth proportional to 19,988.34, 27,584.73 and 12,439.14 is: 17,166.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.34 : 27,584.73 = 12,439.14 : x
  2. Step 2: Convert to fraction form
    19,988.34/27,584.73 = 12,439.14/x
  3. Step 3: Cross multiply
    19,988.34x = 27,584.73 × 12,439.14
  4. Step 4: Simplify right side
    19,988.34x = 343,130,318.33
  5. Step 5: Solve for x
    x = 343,130,318.33/19,988.34
  6. Step 6: Final answer
    x = 17,166.52

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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.