Home / 19,410.81-29,115.39-5,559.81

Finding the Fourth Proportional to 19,410.81, 29,115.39 and 5,559.81

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Solution

The fourth proportional to 19,410.81, 29,115.39 and 5,559.81 is: 8,339.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.81 : 29,115.39 = 5,559.81 : x
  2. Step 2: Convert to fraction form
    19,410.81/29,115.39 = 5,559.81/x
  3. Step 3: Cross multiply
    19,410.81x = 29,115.39 × 5,559.81
  4. Step 4: Simplify right side
    19,410.81x = 161,876,036.48
  5. Step 5: Solve for x
    x = 161,876,036.48/19,410.81
  6. Step 6: Final answer
    x = 8,339.48

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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.