Home / 20,366.64-30,550.10-7,888.05

Finding the Fourth Proportional to 20,366.64, 30,550.10 and 7,888.05

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Solution

The fourth proportional to 20,366.64, 30,550.10 and 7,888.05 is: 11,832.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.64 : 30,550.10 = 7,888.05 : x
  2. Step 2: Convert to fraction form
    20,366.64/30,550.10 = 7,888.05/x
  3. Step 3: Cross multiply
    20,366.64x = 30,550.10 × 7,888.05
  4. Step 4: Simplify right side
    20,366.64x = 240,980,676.86
  5. Step 5: Solve for x
    x = 240,980,676.86/20,366.64
  6. Step 6: Final answer
    x = 11,832.13

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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.