Home / 30,866.32-42,606.36-18,766.96

Finding the Fourth Proportional to 30,866.32, 42,606.36 and 18,766.96

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Solution

The fourth proportional to 30,866.32, 42,606.36 and 18,766.96 is: 25,904.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,866.32 : 42,606.36 = 18,766.96 : x
  2. Step 2: Convert to fraction form
    30,866.32/42,606.36 = 18,766.96/x
  3. Step 3: Cross multiply
    30,866.32x = 42,606.36 × 18,766.96
  4. Step 4: Simplify right side
    30,866.32x = 799,591,853.87
  5. Step 5: Solve for x
    x = 799,591,853.87/30,866.32
  6. Step 6: Final answer
    x = 25,904.99

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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.