Home / 39,867.80-59,838.75-20,160.50

Finding the Fourth Proportional to 39,867.80, 59,838.75 and 20,160.50

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Solution

The fourth proportional to 39,867.80, 59,838.75 and 20,160.50 is: 30,259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,867.80 : 59,838.75 = 20,160.50 : x
  2. Step 2: Convert to fraction form
    39,867.80/59,838.75 = 20,160.50/x
  3. Step 3: Cross multiply
    39,867.80x = 59,838.75 × 20,160.50
  4. Step 4: Simplify right side
    39,867.80x = 1,206,378,820.18
  5. Step 5: Solve for x
    x = 1,206,378,820.18/39,867.80
  6. Step 6: Final answer
    x = 30,259.48

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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.