Home / 25,148.80-37,723.20-19,619.20

Finding the Fourth Proportional to 25,148.80, 37,723.20 and 19,619.20

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Solution

The fourth proportional to 25,148.80, 37,723.20 and 19,619.20 is: 29,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,148.80 : 37,723.20 = 19,619.20 : x
  2. Step 2: Convert to fraction form
    25,148.80/37,723.20 = 19,619.20/x
  3. Step 3: Cross multiply
    25,148.80x = 37,723.20 × 19,619.20
  4. Step 4: Simplify right side
    25,148.80x = 740,099,005.44
  5. Step 5: Solve for x
    x = 740,099,005.44/25,148.80
  6. Step 6: Final answer
    x = 29,428.80

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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.