Home / 28,030.80-41,973.30-18,116.40

Finding the Fourth Proportional to 28,030.80, 41,973.30 and 18,116.40

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Solution

The fourth proportional to 28,030.80, 41,973.30 and 18,116.40 is: 27,127.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.80 : 41,973.30 = 18,116.40 : x
  2. Step 2: Convert to fraction form
    28,030.80/41,973.30 = 18,116.40/x
  3. Step 3: Cross multiply
    28,030.80x = 41,973.30 × 18,116.40
  4. Step 4: Simplify right side
    28,030.80x = 760,405,092.12
  5. Step 5: Solve for x
    x = 760,405,092.12/28,030.80
  6. Step 6: Final answer
    x = 27,127.48

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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.