Home / 31,707.68-43,737.44-20,373.36

Finding the Fourth Proportional to 31,707.68, 43,737.44 and 20,373.36

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Solution

The fourth proportional to 31,707.68, 43,737.44 and 20,373.36 is: 28,102.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,707.68 : 43,737.44 = 20,373.36 : x
  2. Step 2: Convert to fraction form
    31,707.68/43,737.44 = 20,373.36/x
  3. Step 3: Cross multiply
    31,707.68x = 43,737.44 × 20,373.36
  4. Step 4: Simplify right side
    31,707.68x = 891,078,610.60
  5. Step 5: Solve for x
    x = 891,078,610.60/31,707.68
  6. Step 6: Final answer
    x = 28,102.93

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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.