Home / 36,088.20-49,802.80-20,172.72

Finding the Fourth Proportional to 36,088.20, 49,802.80 and 20,172.72

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Solution

The fourth proportional to 36,088.20, 49,802.80 and 20,172.72 is: 27,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,088.20 : 49,802.80 = 20,172.72 : x
  2. Step 2: Convert to fraction form
    36,088.20/49,802.80 = 20,172.72/x
  3. Step 3: Cross multiply
    36,088.20x = 49,802.80 × 20,172.72
  4. Step 4: Simplify right side
    36,088.20x = 1,004,657,939.62
  5. Step 5: Solve for x
    x = 1,004,657,939.62/36,088.20
  6. Step 6: Final answer
    x = 27,838.96

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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.