Home / 19,344.25-29,011.75-9,979.45

Finding the Fourth Proportional to 19,344.25, 29,011.75 and 9,979.45

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Solution

The fourth proportional to 19,344.25, 29,011.75 and 9,979.45 is: 14,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,344.25 : 29,011.75 = 9,979.45 : x
  2. Step 2: Convert to fraction form
    19,344.25/29,011.75 = 9,979.45/x
  3. Step 3: Cross multiply
    19,344.25x = 29,011.75 × 9,979.45
  4. Step 4: Simplify right side
    19,344.25x = 289,521,163.48
  5. Step 5: Solve for x
    x = 289,521,163.48/19,344.25
  6. Step 6: Final answer
    x = 14,966.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.