Home / 31,624.72-43,662.64-20,298.48

Finding the Fourth Proportional to 31,624.72, 43,662.64 and 20,298.48

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Solution

The fourth proportional to 31,624.72, 43,662.64 and 20,298.48 is: 28,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,624.72 : 43,662.64 = 20,298.48 : x
  2. Step 2: Convert to fraction form
    31,624.72/43,662.64 = 20,298.48/x
  3. Step 3: Cross multiply
    31,624.72x = 43,662.64 × 20,298.48
  4. Step 4: Simplify right side
    31,624.72x = 886,285,224.79
  5. Step 5: Solve for x
    x = 886,285,224.79/31,624.72
  6. Step 6: Final answer
    x = 28,025.08

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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.