Home / 20,148.96-30,223.37-5,357.86

Finding the Fourth Proportional to 20,148.96, 30,223.37 and 5,357.86

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Solution

The fourth proportional to 20,148.96, 30,223.37 and 5,357.86 is: 8,036.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.96 : 30,223.37 = 5,357.86 : x
  2. Step 2: Convert to fraction form
    20,148.96/30,223.37 = 5,357.86/x
  3. Step 3: Cross multiply
    20,148.96x = 30,223.37 × 5,357.86
  4. Step 4: Simplify right side
    20,148.96x = 161,932,585.19
  5. Step 5: Solve for x
    x = 161,932,585.19/20,148.96
  6. Step 6: Final answer
    x = 8,036.77

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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.