Home / 39,996.81-59,997.96-13,720.01

Finding the Fourth Proportional to 39,996.81, 59,997.96 and 13,720.01

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Solution

The fourth proportional to 39,996.81, 59,997.96 and 13,720.01 is: 20,580.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,996.81 : 59,997.96 = 13,720.01 : x
  2. Step 2: Convert to fraction form
    39,996.81/59,997.96 = 13,720.01/x
  3. Step 3: Cross multiply
    39,996.81x = 59,997.96 × 13,720.01
  4. Step 4: Simplify right side
    39,996.81x = 823,172,311.19
  5. Step 5: Solve for x
    x = 823,172,311.19/39,996.81
  6. Step 6: Final answer
    x = 20,580.95

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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.