Home / 19,917.95-29,875.10-6,768.81

Finding the Fourth Proportional to 19,917.95, 29,875.10 and 6,768.81

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Solution

The fourth proportional to 19,917.95, 29,875.10 and 6,768.81 is: 10,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.95 : 29,875.10 = 6,768.81 : x
  2. Step 2: Convert to fraction form
    19,917.95/29,875.10 = 6,768.81/x
  3. Step 3: Cross multiply
    19,917.95x = 29,875.10 × 6,768.81
  4. Step 4: Simplify right side
    19,917.95x = 202,218,841.79
  5. Step 5: Solve for x
    x = 202,218,841.79/19,917.95
  6. Step 6: Final answer
    x = 10,152.60

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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.