Home / 31,014.56-42,800.30-16,867.51

Finding the Fourth Proportional to 31,014.56, 42,800.30 and 16,867.51

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Solution

The fourth proportional to 31,014.56, 42,800.30 and 16,867.51 is: 23,277.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,014.56 : 42,800.30 = 16,867.51 : x
  2. Step 2: Convert to fraction form
    31,014.56/42,800.30 = 16,867.51/x
  3. Step 3: Cross multiply
    31,014.56x = 42,800.30 × 16,867.51
  4. Step 4: Simplify right side
    31,014.56x = 721,934,360.17
  5. Step 5: Solve for x
    x = 721,934,360.17/31,014.56
  6. Step 6: Final answer
    x = 23,277.27

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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.