Home / 30,312.62-41,830.82-20,752.26

Finding the Fourth Proportional to 30,312.62, 41,830.82 and 20,752.26

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Solution

The fourth proportional to 30,312.62, 41,830.82 and 20,752.26 is: 28,637.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.62 : 41,830.82 = 20,752.26 : x
  2. Step 2: Convert to fraction form
    30,312.62/41,830.82 = 20,752.26/x
  3. Step 3: Cross multiply
    30,312.62x = 41,830.82 × 20,752.26
  4. Step 4: Simplify right side
    30,312.62x = 868,084,052.65
  5. Step 5: Solve for x
    x = 868,084,052.65/30,312.62
  6. Step 6: Final answer
    x = 28,637.71

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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.