Home / 55,268.60-82,920.40-19,729.13

Finding the Fourth Proportional to 55,268.60, 82,920.40 and 19,729.13

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Solution

The fourth proportional to 55,268.60, 82,920.40 and 19,729.13 is: 29,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,268.60 : 82,920.40 = 19,729.13 : x
  2. Step 2: Convert to fraction form
    55,268.60/82,920.40 = 19,729.13/x
  3. Step 3: Cross multiply
    55,268.60x = 82,920.40 × 19,729.13
  4. Step 4: Simplify right side
    55,268.60x = 1,635,947,176.03
  5. Step 5: Solve for x
    x = 1,635,947,176.03/55,268.60
  6. Step 6: Final answer
    x = 29,599.94

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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.