Home / 30,727.46-42,407.07-18,798.73

Finding the Fourth Proportional to 30,727.46, 42,407.07 and 18,798.73

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Solution

The fourth proportional to 30,727.46, 42,407.07 and 18,798.73 is: 25,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,727.46 : 42,407.07 = 18,798.73 : x
  2. Step 2: Convert to fraction form
    30,727.46/42,407.07 = 18,798.73/x
  3. Step 3: Cross multiply
    30,727.46x = 42,407.07 × 18,798.73
  4. Step 4: Simplify right side
    30,727.46x = 797,199,059.02
  5. Step 5: Solve for x
    x = 797,199,059.02/30,727.46
  6. Step 6: Final answer
    x = 25,944.19

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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.