Home / 20,437.44-30,664.80-8,756.16

Finding the Fourth Proportional to 20,437.44, 30,664.80 and 8,756.16

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Solution

The fourth proportional to 20,437.44, 30,664.80 and 8,756.16 is: 13,137.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.44 : 30,664.80 = 8,756.16 : x
  2. Step 2: Convert to fraction form
    20,437.44/30,664.80 = 8,756.16/x
  3. Step 3: Cross multiply
    20,437.44x = 30,664.80 × 8,756.16
  4. Step 4: Simplify right side
    20,437.44x = 268,505,895.17
  5. Step 5: Solve for x
    x = 268,505,895.17/20,437.44
  6. Step 6: Final answer
    x = 13,137.94

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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.