Home / 31,598.92-43,615.20-19,655.16

Finding the Fourth Proportional to 31,598.92, 43,615.20 and 19,655.16

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Solution

The fourth proportional to 31,598.92, 43,615.20 and 19,655.16 is: 27,129.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,598.92 : 43,615.20 = 19,655.16 : x
  2. Step 2: Convert to fraction form
    31,598.92/43,615.20 = 19,655.16/x
  3. Step 3: Cross multiply
    31,598.92x = 43,615.20 × 19,655.16
  4. Step 4: Simplify right side
    31,598.92x = 857,263,734.43
  5. Step 5: Solve for x
    x = 857,263,734.43/31,598.92
  6. Step 6: Final answer
    x = 27,129.53

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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.