Home / 24,720.91-34,114.68-13,390.15

Finding the Fourth Proportional to 24,720.91, 34,114.68 and 13,390.15

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Solution

The fourth proportional to 24,720.91, 34,114.68 and 13,390.15 is: 18,478.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,720.91 : 34,114.68 = 13,390.15 : x
  2. Step 2: Convert to fraction form
    24,720.91/34,114.68 = 13,390.15/x
  3. Step 3: Cross multiply
    24,720.91x = 34,114.68 × 13,390.15
  4. Step 4: Simplify right side
    24,720.91x = 456,800,682.40
  5. Step 5: Solve for x
    x = 456,800,682.40/24,720.91
  6. Step 6: Final answer
    x = 18,478.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.