Home / 31,074.60-42,866.10-18,496.92

Finding the Fourth Proportional to 31,074.60, 42,866.10 and 18,496.92

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Solution

The fourth proportional to 31,074.60, 42,866.10 and 18,496.92 is: 25,515.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,074.60 : 42,866.10 = 18,496.92 : x
  2. Step 2: Convert to fraction form
    31,074.60/42,866.10 = 18,496.92/x
  3. Step 3: Cross multiply
    31,074.60x = 42,866.10 × 18,496.92
  4. Step 4: Simplify right side
    31,074.60x = 792,890,822.41
  5. Step 5: Solve for x
    x = 792,890,822.41/31,074.60
  6. Step 6: Final answer
    x = 25,515.72

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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.