Home / 31,129.61-42,958.66-17,700.86

Finding the Fourth Proportional to 31,129.61, 42,958.66 and 17,700.86

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Solution

The fourth proportional to 31,129.61, 42,958.66 and 17,700.86 is: 24,427.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.61 : 42,958.66 = 17,700.86 : x
  2. Step 2: Convert to fraction form
    31,129.61/42,958.66 = 17,700.86/x
  3. Step 3: Cross multiply
    31,129.61x = 42,958.66 × 17,700.86
  4. Step 4: Simplify right side
    31,129.61x = 760,405,137.94
  5. Step 5: Solve for x
    x = 760,405,137.94/31,129.61
  6. Step 6: Final answer
    x = 24,427.07

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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.