Home / 19,890.18-29,848.68-8,203.14

Finding the Fourth Proportional to 19,890.18, 29,848.68 and 8,203.14

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Solution

The fourth proportional to 19,890.18, 29,848.68 and 8,203.14 is: 12,310.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.18 : 29,848.68 = 8,203.14 : x
  2. Step 2: Convert to fraction form
    19,890.18/29,848.68 = 8,203.14/x
  3. Step 3: Cross multiply
    19,890.18x = 29,848.68 × 8,203.14
  4. Step 4: Simplify right side
    19,890.18x = 244,852,900.86
  5. Step 5: Solve for x
    x = 244,852,900.86/19,890.18
  6. Step 6: Final answer
    x = 12,310.24

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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.