Home / 19,618.20-29,439.90-10,859.40

Finding the Fourth Proportional to 19,618.20, 29,439.90 and 10,859.40

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Solution

The fourth proportional to 19,618.20, 29,439.90 and 10,859.40 is: 16,296.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.20 : 29,439.90 = 10,859.40 : x
  2. Step 2: Convert to fraction form
    19,618.20/29,439.90 = 10,859.40/x
  3. Step 3: Cross multiply
    19,618.20x = 29,439.90 × 10,859.40
  4. Step 4: Simplify right side
    19,618.20x = 319,699,650.06
  5. Step 5: Solve for x
    x = 319,699,650.06/19,618.20
  6. Step 6: Final answer
    x = 16,296.07

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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.