Home / 30,932.71-42,687.96-16,785.56

Finding the Fourth Proportional to 30,932.71, 42,687.96 and 16,785.56

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Solution

The fourth proportional to 30,932.71, 42,687.96 and 16,785.56 is: 23,164.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,932.71 : 42,687.96 = 16,785.56 : x
  2. Step 2: Convert to fraction form
    30,932.71/42,687.96 = 16,785.56/x
  3. Step 3: Cross multiply
    30,932.71x = 42,687.96 × 16,785.56
  4. Step 4: Simplify right side
    30,932.71x = 716,541,313.86
  5. Step 5: Solve for x
    x = 716,541,313.86/30,932.71
  6. Step 6: Final answer
    x = 23,164.52

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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.