Home / 31,652.37-43,659.68-20,303.90

Finding the Fourth Proportional to 31,652.37, 43,659.68 and 20,303.90

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Solution

The fourth proportional to 31,652.37, 43,659.68 and 20,303.90 is: 28,006.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,652.37 : 43,659.68 = 20,303.90 : x
  2. Step 2: Convert to fraction form
    31,652.37/43,659.68 = 20,303.90/x
  3. Step 3: Cross multiply
    31,652.37x = 43,659.68 × 20,303.90
  4. Step 4: Simplify right side
    31,652.37x = 886,461,456.93
  5. Step 5: Solve for x
    x = 886,461,456.93/31,652.37
  6. Step 6: Final answer
    x = 28,006.16

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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.