Home / 30,308.48-41,832.50-19,679.66

Finding the Fourth Proportional to 30,308.48, 41,832.50 and 19,679.66

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Solution

The fourth proportional to 30,308.48, 41,832.50 and 19,679.66 is: 27,162.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.48 : 41,832.50 = 19,679.66 : x
  2. Step 2: Convert to fraction form
    30,308.48/41,832.50 = 19,679.66/x
  3. Step 3: Cross multiply
    30,308.48x = 41,832.50 × 19,679.66
  4. Step 4: Simplify right side
    30,308.48x = 823,249,336.96
  5. Step 5: Solve for x
    x = 823,249,336.96/30,308.48
  6. Step 6: Final answer
    x = 27,162.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.