Home / 19,340.56-29,014.49-13,780.11

Finding the Fourth Proportional to 19,340.56, 29,014.49 and 13,780.11

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Solution

The fourth proportional to 19,340.56, 29,014.49 and 13,780.11 is: 20,672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,340.56 : 29,014.49 = 13,780.11 : x
  2. Step 2: Convert to fraction form
    19,340.56/29,014.49 = 13,780.11/x
  3. Step 3: Cross multiply
    19,340.56x = 29,014.49 × 13,780.11
  4. Step 4: Simplify right side
    19,340.56x = 399,822,766.33
  5. Step 5: Solve for x
    x = 399,822,766.33/19,340.56
  6. Step 6: Final answer
    x = 20,672.77

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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.