Home / 19,917.19-29,875.78-8,230.71

Finding the Fourth Proportional to 19,917.19, 29,875.78 and 8,230.71

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Solution

The fourth proportional to 19,917.19, 29,875.78 and 8,230.71 is: 12,346.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.19 : 29,875.78 = 8,230.71 : x
  2. Step 2: Convert to fraction form
    19,917.19/29,875.78 = 8,230.71/x
  3. Step 3: Cross multiply
    19,917.19x = 29,875.78 × 8,230.71
  4. Step 4: Simplify right side
    19,917.19x = 245,898,881.20
  5. Step 5: Solve for x
    x = 245,898,881.20/19,917.19
  6. Step 6: Final answer
    x = 12,346.06

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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.