Home / 31,029.14-42,829.02-18,289.73

Finding the Fourth Proportional to 31,029.14, 42,829.02 and 18,289.73

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Solution

The fourth proportional to 31,029.14, 42,829.02 and 18,289.73 is: 25,245.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,029.14 : 42,829.02 = 18,289.73 : x
  2. Step 2: Convert to fraction form
    31,029.14/42,829.02 = 18,289.73/x
  3. Step 3: Cross multiply
    31,029.14x = 42,829.02 × 18,289.73
  4. Step 4: Simplify right side
    31,029.14x = 783,331,319.04
  5. Step 5: Solve for x
    x = 783,331,319.04/31,029.14
  6. Step 6: Final answer
    x = 25,245.02

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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.