Home / 30,932.96-42,688.31-16,785.81

Finding the Fourth Proportional to 30,932.96, 42,688.31 and 16,785.81

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Solution

The fourth proportional to 30,932.96, 42,688.31 and 16,785.81 is: 23,164.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,932.96 : 42,688.31 = 16,785.81 : x
  2. Step 2: Convert to fraction form
    30,932.96/42,688.31 = 16,785.81/x
  3. Step 3: Cross multiply
    30,932.96x = 42,688.31 × 16,785.81
  4. Step 4: Simplify right side
    30,932.96x = 716,557,776.95
  5. Step 5: Solve for x
    x = 716,557,776.95/30,932.96
  6. Step 6: Final answer
    x = 23,164.87

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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.