Home / 28,964.69-39,975.55-18,355.29

Finding the Fourth Proportional to 28,964.69, 39,975.55 and 18,355.29

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Solution

The fourth proportional to 28,964.69, 39,975.55 and 18,355.29 is: 25,333.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.69 : 39,975.55 = 18,355.29 : x
  2. Step 2: Convert to fraction form
    28,964.69/39,975.55 = 18,355.29/x
  3. Step 3: Cross multiply
    28,964.69x = 39,975.55 × 18,355.29
  4. Step 4: Simplify right side
    28,964.69x = 733,762,721.38
  5. Step 5: Solve for x
    x = 733,762,721.38/28,964.69
  6. Step 6: Final answer
    x = 25,333.01

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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.