Home / 31,343.96-47,025.77-9,157.86

Finding the Fourth Proportional to 31,343.96, 47,025.77 and 9,157.86

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Solution

The fourth proportional to 31,343.96, 47,025.77 and 9,157.86 is: 13,739.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,343.96 : 47,025.77 = 9,157.86 : x
  2. Step 2: Convert to fraction form
    31,343.96/47,025.77 = 9,157.86/x
  3. Step 3: Cross multiply
    31,343.96x = 47,025.77 × 9,157.86
  4. Step 4: Simplify right side
    31,343.96x = 430,655,372.26
  5. Step 5: Solve for x
    x = 430,655,372.26/31,343.96
  6. Step 6: Final answer
    x = 13,739.66

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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.