Home / 31,370.60-43,293.70-20,741.80

Finding the Fourth Proportional to 31,370.60, 43,293.70 and 20,741.80

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Solution

The fourth proportional to 31,370.60, 43,293.70 and 20,741.80 is: 28,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,370.60 : 43,293.70 = 20,741.80 : x
  2. Step 2: Convert to fraction form
    31,370.60/43,293.70 = 20,741.80/x
  3. Step 3: Cross multiply
    31,370.60x = 43,293.70 × 20,741.80
  4. Step 4: Simplify right side
    31,370.60x = 897,989,266.66
  5. Step 5: Solve for x
    x = 897,989,266.66/31,370.60
  6. Step 6: Final answer
    x = 28,625.19

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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.