Home / 43,015.48-64,523.08-11,428.70

Finding the Fourth Proportional to 43,015.48, 64,523.08 and 11,428.70

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Solution

The fourth proportional to 43,015.48, 64,523.08 and 11,428.70 is: 17,143.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,015.48 : 64,523.08 = 11,428.70 : x
  2. Step 2: Convert to fraction form
    43,015.48/64,523.08 = 11,428.70/x
  3. Step 3: Cross multiply
    43,015.48x = 64,523.08 × 11,428.70
  4. Step 4: Simplify right side
    43,015.48x = 737,414,924.40
  5. Step 5: Solve for x
    x = 737,414,924.40/43,015.48
  6. Step 6: Final answer
    x = 17,143.01

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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.