Home / 30,238.30-45,365.11-21,371.07

Finding the Fourth Proportional to 30,238.30, 45,365.11 and 21,371.07

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Solution

The fourth proportional to 30,238.30, 45,365.11 and 21,371.07 is: 32,062.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238.30 : 45,365.11 = 21,371.07 : x
  2. Step 2: Convert to fraction form
    30,238.30/45,365.11 = 21,371.07/x
  3. Step 3: Cross multiply
    30,238.30x = 45,365.11 × 21,371.07
  4. Step 4: Simplify right side
    30,238.30x = 969,501,178.27
  5. Step 5: Solve for x
    x = 969,501,178.27/30,238.30
  6. Step 6: Final answer
    x = 32,062.03

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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.