Home / 31,021.02-42,808.68-16,873.92

Finding the Fourth Proportional to 31,021.02, 42,808.68 and 16,873.92

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Solution

The fourth proportional to 31,021.02, 42,808.68 and 16,873.92 is: 23,285.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,021.02 : 42,808.68 = 16,873.92 : x
  2. Step 2: Convert to fraction form
    31,021.02/42,808.68 = 16,873.92/x
  3. Step 3: Cross multiply
    31,021.02x = 42,808.68 × 16,873.92
  4. Step 4: Simplify right side
    31,021.02x = 722,350,241.63
  5. Step 5: Solve for x
    x = 722,350,241.63/31,021.02
  6. Step 6: Final answer
    x = 23,285.83

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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.