Home / 36,132.84-49,859.16-20,821.62

Finding the Fourth Proportional to 36,132.84, 49,859.16 and 20,821.62

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Solution

The fourth proportional to 36,132.84, 49,859.16 and 20,821.62 is: 28,731.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,132.84 : 49,859.16 = 20,821.62 : x
  2. Step 2: Convert to fraction form
    36,132.84/49,859.16 = 20,821.62/x
  3. Step 3: Cross multiply
    36,132.84x = 49,859.16 × 20,821.62
  4. Step 4: Simplify right side
    36,132.84x = 1,038,148,483.04
  5. Step 5: Solve for x
    x = 1,038,148,483.04/36,132.84
  6. Step 6: Final answer
    x = 28,731.44

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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.