Home / 39,983.82-59,975.79-13,688.79

Finding the Fourth Proportional to 39,983.82, 59,975.79 and 13,688.79

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Solution

The fourth proportional to 39,983.82, 59,975.79 and 13,688.79 is: 20,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983.82 : 59,975.79 = 13,688.79 : x
  2. Step 2: Convert to fraction form
    39,983.82/59,975.79 = 13,688.79/x
  3. Step 3: Cross multiply
    39,983.82x = 59,975.79 × 13,688.79
  4. Step 4: Simplify right side
    39,983.82x = 820,995,694.52
  5. Step 5: Solve for x
    x = 820,995,694.52/39,983.82
  6. Step 6: Final answer
    x = 20,533.20

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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.