Home / 19,890.14-29,835.20-9,470.30

Finding the Fourth Proportional to 19,890.14, 29,835.20 and 9,470.30

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Solution

The fourth proportional to 19,890.14, 29,835.20 and 9,470.30 is: 14,205.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.14 : 29,835.20 = 9,470.30 : x
  2. Step 2: Convert to fraction form
    19,890.14/29,835.20 = 9,470.30/x
  3. Step 3: Cross multiply
    19,890.14x = 29,835.20 × 9,470.30
  4. Step 4: Simplify right side
    19,890.14x = 282,548,169.06
  5. Step 5: Solve for x
    x = 282,548,169.06/19,890.14
  6. Step 6: Final answer
    x = 14,205.44

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Similar ratio
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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.