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Finding the Fourth Proportional to 35,399.60, 53,108.60 and 13,213.14

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Solution

The fourth proportional to 35,399.60, 53,108.60 and 13,213.14 is: 19,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,399.60 : 53,108.60 = 13,213.14 : x
  2. Step 2: Convert to fraction form
    35,399.60/53,108.60 = 13,213.14/x
  3. Step 3: Cross multiply
    35,399.60x = 53,108.60 × 13,213.14
  4. Step 4: Simplify right side
    35,399.60x = 701,731,367.00
  5. Step 5: Solve for x
    x = 701,731,367.00/35,399.60
  6. Step 6: Final answer
    x = 19,823.14

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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.