Home / 35,486.43-53,220.56-10,520.64

Finding the Fourth Proportional to 35,486.43, 53,220.56 and 10,520.64

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Solution

The fourth proportional to 35,486.43, 53,220.56 and 10,520.64 is: 15,778.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,486.43 : 53,220.56 = 10,520.64 : x
  2. Step 2: Convert to fraction form
    35,486.43/53,220.56 = 10,520.64/x
  3. Step 3: Cross multiply
    35,486.43x = 53,220.56 × 10,520.64
  4. Step 4: Simplify right side
    35,486.43x = 559,914,352.36
  5. Step 5: Solve for x
    x = 559,914,352.36/35,486.43
  6. Step 6: Final answer
    x = 15,778.27

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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.