Home / 43,009.31-64,513.97-13,429.68

Finding the Fourth Proportional to 43,009.31, 64,513.97 and 13,429.68

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Solution

The fourth proportional to 43,009.31, 64,513.97 and 13,429.68 is: 20,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009.31 : 64,513.97 = 13,429.68 : x
  2. Step 2: Convert to fraction form
    43,009.31/64,513.97 = 13,429.68/x
  3. Step 3: Cross multiply
    43,009.31x = 64,513.97 × 13,429.68
  4. Step 4: Simplify right side
    43,009.31x = 866,401,905.48
  5. Step 5: Solve for x
    x = 866,401,905.48/43,009.31
  6. Step 6: Final answer
    x = 20,144.52

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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.