Home / 30,660.36-42,322.86-17,917.68

Finding the Fourth Proportional to 30,660.36, 42,322.86 and 17,917.68

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Solution

The fourth proportional to 30,660.36, 42,322.86 and 17,917.68 is: 24,733.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660.36 : 42,322.86 = 17,917.68 : x
  2. Step 2: Convert to fraction form
    30,660.36/42,322.86 = 17,917.68/x
  3. Step 3: Cross multiply
    30,660.36x = 42,322.86 × 17,917.68
  4. Step 4: Simplify right side
    30,660.36x = 758,327,462.16
  5. Step 5: Solve for x
    x = 758,327,462.16/30,660.36
  6. Step 6: Final answer
    x = 24,733.16

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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.