Home / 45,111.32-67,673.46-13,949

Finding the Fourth Proportional to 45,111.32, 67,673.46 and 13,949

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Solution

The fourth proportional to 45,111.32, 67,673.46 and 13,949 is: 20,925.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,111.32 : 67,673.46 = 13,949 : x
  2. Step 2: Convert to fraction form
    45,111.32/67,673.46 = 13,949/x
  3. Step 3: Cross multiply
    45,111.32x = 67,673.46 × 13,949
  4. Step 4: Simplify right side
    45,111.32x = 943,977,093.54
  5. Step 5: Solve for x
    x = 943,977,093.54/45,111.32
  6. Step 6: Final answer
    x = 20,925.50

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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.