Home / 38,216.10-57,324.15-11,920.80

Finding the Fourth Proportional to 38,216.10, 57,324.15 and 11,920.80

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Solution

The fourth proportional to 38,216.10, 57,324.15 and 11,920.80 is: 17,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,216.10 : 57,324.15 = 11,920.80 : x
  2. Step 2: Convert to fraction form
    38,216.10/57,324.15 = 11,920.80/x
  3. Step 3: Cross multiply
    38,216.10x = 57,324.15 × 11,920.80
  4. Step 4: Simplify right side
    38,216.10x = 683,349,727.32
  5. Step 5: Solve for x
    x = 683,349,727.32/38,216.10
  6. Step 6: Final answer
    x = 17,881.20

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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.