Home / 19,640.12-29,445.81-6,305.51

Finding the Fourth Proportional to 19,640.12, 29,445.81 and 6,305.51

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Solution

The fourth proportional to 19,640.12, 29,445.81 and 6,305.51 is: 9,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.12 : 29,445.81 = 6,305.51 : x
  2. Step 2: Convert to fraction form
    19,640.12/29,445.81 = 6,305.51/x
  3. Step 3: Cross multiply
    19,640.12x = 29,445.81 × 6,305.51
  4. Step 4: Simplify right side
    19,640.12x = 185,670,849.41
  5. Step 5: Solve for x
    x = 185,670,849.41/19,640.12
  6. Step 6: Final answer
    x = 9,453.65

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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.