Home / 28,202.73-42,304.19-7,142.77

Finding the Fourth Proportional to 28,202.73, 42,304.19 and 7,142.77

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Solution

The fourth proportional to 28,202.73, 42,304.19 and 7,142.77 is: 10,714.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.73 : 42,304.19 = 7,142.77 : x
  2. Step 2: Convert to fraction form
    28,202.73/42,304.19 = 7,142.77/x
  3. Step 3: Cross multiply
    28,202.73x = 42,304.19 × 7,142.77
  4. Step 4: Simplify right side
    28,202.73x = 302,169,011.30
  5. Step 5: Solve for x
    x = 302,169,011.30/28,202.73
  6. Step 6: Final answer
    x = 10,714.18

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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.