Home / 30,239.13-41,711.78-19,480.46

Finding the Fourth Proportional to 30,239.13, 41,711.78 and 19,480.46

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Solution

The fourth proportional to 30,239.13, 41,711.78 and 19,480.46 is: 26,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.13 : 41,711.78 = 19,480.46 : x
  2. Step 2: Convert to fraction form
    30,239.13/41,711.78 = 19,480.46/x
  3. Step 3: Cross multiply
    30,239.13x = 41,711.78 × 19,480.46
  4. Step 4: Simplify right side
    30,239.13x = 812,564,355.86
  5. Step 5: Solve for x
    x = 812,564,355.86/30,239.13
  6. Step 6: Final answer
    x = 26,871.29

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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.