Home / 20,368.64-30,552.32-5,776.64

Finding the Fourth Proportional to 20,368.64, 30,552.32 and 5,776.64

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Solution

The fourth proportional to 20,368.64, 30,552.32 and 5,776.64 is: 8,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368.64 : 30,552.32 = 5,776.64 : x
  2. Step 2: Convert to fraction form
    20,368.64/30,552.32 = 5,776.64/x
  3. Step 3: Cross multiply
    20,368.64x = 30,552.32 × 5,776.64
  4. Step 4: Simplify right side
    20,368.64x = 176,489,753.80
  5. Step 5: Solve for x
    x = 176,489,753.80/20,368.64
  6. Step 6: Final answer
    x = 8,664.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.