Home / 13,798.87-20,685.85-13,380.55

Finding the Fourth Proportional to 13,798.87, 20,685.85 and 13,380.55

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Solution

The fourth proportional to 13,798.87, 20,685.85 and 13,380.55 is: 20,058.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.87 : 20,685.85 = 13,380.55 : x
  2. Step 2: Convert to fraction form
    13,798.87/20,685.85 = 13,380.55/x
  3. Step 3: Cross multiply
    13,798.87x = 20,685.85 × 13,380.55
  4. Step 4: Simplify right side
    13,798.87x = 276,788,050.22
  5. Step 5: Solve for x
    x = 276,788,050.22/13,798.87
  6. Step 6: Final answer
    x = 20,058.75

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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.