Home / 42,481.73-63,722.70-12,899.79

Finding the Fourth Proportional to 42,481.73, 63,722.70 and 12,899.79

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Solution

The fourth proportional to 42,481.73, 63,722.70 and 12,899.79 is: 19,349.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,481.73 : 63,722.70 = 12,899.79 : x
  2. Step 2: Convert to fraction form
    42,481.73/63,722.70 = 12,899.79/x
  3. Step 3: Cross multiply
    42,481.73x = 63,722.70 × 12,899.79
  4. Step 4: Simplify right side
    42,481.73x = 822,009,448.23
  5. Step 5: Solve for x
    x = 822,009,448.23/42,481.73
  6. Step 6: Final answer
    x = 19,349.72

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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.