Home / 19,765.20-29,589.66-12,347.18

Finding the Fourth Proportional to 19,765.20, 29,589.66 and 12,347.18

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Solution

The fourth proportional to 19,765.20, 29,589.66 and 12,347.18 is: 18,484.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765.20 : 29,589.66 = 12,347.18 : x
  2. Step 2: Convert to fraction form
    19,765.20/29,589.66 = 12,347.18/x
  3. Step 3: Cross multiply
    19,765.20x = 29,589.66 × 12,347.18
  4. Step 4: Simplify right side
    19,765.20x = 365,348,710.21
  5. Step 5: Solve for x
    x = 365,348,710.21/19,765.20
  6. Step 6: Final answer
    x = 18,484.44

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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.