Home / 31,011.90-42,796.41-16,864.74

Finding the Fourth Proportional to 31,011.90, 42,796.41 and 16,864.74

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Solution

The fourth proportional to 31,011.90, 42,796.41 and 16,864.74 is: 23,273.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,011.90 : 42,796.41 = 16,864.74 : x
  2. Step 2: Convert to fraction form
    31,011.90/42,796.41 = 16,864.74/x
  3. Step 3: Cross multiply
    31,011.90x = 42,796.41 × 16,864.74
  4. Step 4: Simplify right side
    31,011.90x = 721,750,327.58
  5. Step 5: Solve for x
    x = 721,750,327.58/31,011.90
  6. Step 6: Final answer
    x = 23,273.33

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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.