Home / 19,305.60-26,618.40-13,327.80

Finding the Fourth Proportional to 19,305.60, 26,618.40 and 13,327.80

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Solution

The fourth proportional to 19,305.60, 26,618.40 and 13,327.80 is: 18,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.60 : 26,618.40 = 13,327.80 : x
  2. Step 2: Convert to fraction form
    19,305.60/26,618.40 = 13,327.80/x
  3. Step 3: Cross multiply
    19,305.60x = 26,618.40 × 13,327.80
  4. Step 4: Simplify right side
    19,305.60x = 354,764,711.52
  5. Step 5: Solve for x
    x = 354,764,711.52/19,305.60
  6. Step 6: Final answer
    x = 18,376.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.