Home / 31,777.79-43,851.60-18,348.26

Finding the Fourth Proportional to 31,777.79, 43,851.60 and 18,348.26

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Solution

The fourth proportional to 31,777.79, 43,851.60 and 18,348.26 is: 25,319.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,777.79 : 43,851.60 = 18,348.26 : x
  2. Step 2: Convert to fraction form
    31,777.79/43,851.60 = 18,348.26/x
  3. Step 3: Cross multiply
    31,777.79x = 43,851.60 × 18,348.26
  4. Step 4: Simplify right side
    31,777.79x = 804,600,338.96
  5. Step 5: Solve for x
    x = 804,600,338.96/31,777.79
  6. Step 6: Final answer
    x = 25,319.59

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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.