Home / 28,193.38-42,290.81-9,474.08

Finding the Fourth Proportional to 28,193.38, 42,290.81 and 9,474.08

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Solution

The fourth proportional to 28,193.38, 42,290.81 and 9,474.08 is: 14,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.38 : 42,290.81 = 9,474.08 : x
  2. Step 2: Convert to fraction form
    28,193.38/42,290.81 = 9,474.08/x
  3. Step 3: Cross multiply
    28,193.38x = 42,290.81 × 9,474.08
  4. Step 4: Simplify right side
    28,193.38x = 400,666,293.91
  5. Step 5: Solve for x
    x = 400,666,293.91/28,193.38
  6. Step 6: Final answer
    x = 14,211.36

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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.