Home / 19,928.80-29,828.40-18,373.60

Finding the Fourth Proportional to 19,928.80, 29,828.40 and 18,373.60

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Solution

The fourth proportional to 19,928.80, 29,828.40 and 18,373.60 is: 27,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.80 : 29,828.40 = 18,373.60 : x
  2. Step 2: Convert to fraction form
    19,928.80/29,828.40 = 18,373.60/x
  3. Step 3: Cross multiply
    19,928.80x = 29,828.40 × 18,373.60
  4. Step 4: Simplify right side
    19,928.80x = 548,055,090.24
  5. Step 5: Solve for x
    x = 548,055,090.24/19,928.80
  6. Step 6: Final answer
    x = 27,500.66

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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.