Home / 39,970.35-55,159.28-22,065.03

Finding the Fourth Proportional to 39,970.35, 55,159.28 and 22,065.03

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Solution

The fourth proportional to 39,970.35, 55,159.28 and 22,065.03 is: 30,449.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.35 : 55,159.28 = 22,065.03 : x
  2. Step 2: Convert to fraction form
    39,970.35/55,159.28 = 22,065.03/x
  3. Step 3: Cross multiply
    39,970.35x = 55,159.28 × 22,065.03
  4. Step 4: Simplify right side
    39,970.35x = 1,217,091,057.65
  5. Step 5: Solve for x
    x = 1,217,091,057.65/39,970.35
  6. Step 6: Final answer
    x = 30,449.85

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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.