Home / 28,678.20-39,590.30-17,929.04

Finding the Fourth Proportional to 28,678.20, 39,590.30 and 17,929.04

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Solution

The fourth proportional to 28,678.20, 39,590.30 and 17,929.04 is: 24,751.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.20 : 39,590.30 = 17,929.04 : x
  2. Step 2: Convert to fraction form
    28,678.20/39,590.30 = 17,929.04/x
  3. Step 3: Cross multiply
    28,678.20x = 39,590.30 × 17,929.04
  4. Step 4: Simplify right side
    28,678.20x = 709,816,072.31
  5. Step 5: Solve for x
    x = 709,816,072.31/28,678.20
  6. Step 6: Final answer
    x = 24,751.07

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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.