Home / 31,741.50-47,608.37-18,421.74

Finding the Fourth Proportional to 31,741.50, 47,608.37 and 18,421.74

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Solution

The fourth proportional to 31,741.50, 47,608.37 and 18,421.74 is: 27,630.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,741.50 : 47,608.37 = 18,421.74 : x
  2. Step 2: Convert to fraction form
    31,741.50/47,608.37 = 18,421.74/x
  3. Step 3: Cross multiply
    31,741.50x = 47,608.37 × 18,421.74
  4. Step 4: Simplify right side
    31,741.50x = 877,028,921.86
  5. Step 5: Solve for x
    x = 877,028,921.86/31,741.50
  6. Step 6: Final answer
    x = 27,630.36

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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.