Home / 28,964.44-39,975.20-18,355.04

Finding the Fourth Proportional to 28,964.44, 39,975.20 and 18,355.04

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Solution

The fourth proportional to 28,964.44, 39,975.20 and 18,355.04 is: 25,332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.44 : 39,975.20 = 18,355.04 : x
  2. Step 2: Convert to fraction form
    28,964.44/39,975.20 = 18,355.04/x
  3. Step 3: Cross multiply
    28,964.44x = 39,975.20 × 18,355.04
  4. Step 4: Simplify right side
    28,964.44x = 733,746,395.01
  5. Step 5: Solve for x
    x = 733,746,395.01/28,964.44
  6. Step 6: Final answer
    x = 25,332.66

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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.