Home / 19,749-27,240.96-13,299.48

Finding the Fourth Proportional to 19,749, 27,240.96 and 13,299.48

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Solution

The fourth proportional to 19,749, 27,240.96 and 13,299.48 is: 18,344.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,749 : 27,240.96 = 13,299.48 : x
  2. Step 2: Convert to fraction form
    19,749/27,240.96 = 13,299.48/x
  3. Step 3: Cross multiply
    19,749x = 27,240.96 × 13,299.48
  4. Step 4: Simplify right side
    19,749x = 362,290,602.70
  5. Step 5: Solve for x
    x = 362,290,602.70/19,749
  6. Step 6: Final answer
    x = 18,344.76

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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.