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Finding the Fourth Proportional to 15,008.40, 22,469.40 and 13,453.20

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Solution

The fourth proportional to 15,008.40, 22,469.40 and 13,453.20 is: 20,141.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.40 : 22,469.40 = 13,453.20 : x
  2. Step 2: Convert to fraction form
    15,008.40/22,469.40 = 13,453.20/x
  3. Step 3: Cross multiply
    15,008.40x = 22,469.40 × 13,453.20
  4. Step 4: Simplify right side
    15,008.40x = 302,285,332.08
  5. Step 5: Solve for x
    x = 302,285,332.08/15,008.40
  6. Step 6: Final answer
    x = 20,141.08

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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.