Home / 19,331.23-28,999.37-5,480.59

Finding the Fourth Proportional to 19,331.23, 28,999.37 and 5,480.59

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Solution

The fourth proportional to 19,331.23, 28,999.37 and 5,480.59 is: 8,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.23 : 28,999.37 = 5,480.59 : x
  2. Step 2: Convert to fraction form
    19,331.23/28,999.37 = 5,480.59/x
  3. Step 3: Cross multiply
    19,331.23x = 28,999.37 × 5,480.59
  4. Step 4: Simplify right side
    19,331.23x = 158,933,657.23
  5. Step 5: Solve for x
    x = 158,933,657.23/19,331.23
  6. Step 6: Final answer
    x = 8,221.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.