Home / 31,004.02-42,785.85-16,856.83

Finding the Fourth Proportional to 31,004.02, 42,785.85 and 16,856.83

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Solution

The fourth proportional to 31,004.02, 42,785.85 and 16,856.83 is: 23,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,004.02 : 42,785.85 = 16,856.83 : x
  2. Step 2: Convert to fraction form
    31,004.02/42,785.85 = 16,856.83/x
  3. Step 3: Cross multiply
    31,004.02x = 42,785.85 × 16,856.83
  4. Step 4: Simplify right side
    31,004.02x = 721,233,799.86
  5. Step 5: Solve for x
    x = 721,233,799.86/31,004.02
  6. Step 6: Final answer
    x = 23,262.59

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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.