Home / 36,721.74-50,671.88-20,802.78

Finding the Fourth Proportional to 36,721.74, 50,671.88 and 20,802.78

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Solution

The fourth proportional to 36,721.74, 50,671.88 and 20,802.78 is: 28,705.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,721.74 : 50,671.88 = 20,802.78 : x
  2. Step 2: Convert to fraction form
    36,721.74/50,671.88 = 20,802.78/x
  3. Step 3: Cross multiply
    36,721.74x = 50,671.88 × 20,802.78
  4. Step 4: Simplify right side
    36,721.74x = 1,054,115,971.83
  5. Step 5: Solve for x
    x = 1,054,115,971.83/36,721.74
  6. Step 6: Final answer
    x = 28,705.50

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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.