Home / 28,231.26-42,340.71-11,574.90

Finding the Fourth Proportional to 28,231.26, 42,340.71 and 11,574.90

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Solution

The fourth proportional to 28,231.26, 42,340.71 and 11,574.90 is: 17,359.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.26 : 42,340.71 = 11,574.90 : x
  2. Step 2: Convert to fraction form
    28,231.26/42,340.71 = 11,574.90/x
  3. Step 3: Cross multiply
    28,231.26x = 42,340.71 × 11,574.90
  4. Step 4: Simplify right side
    28,231.26x = 490,089,484.18
  5. Step 5: Solve for x
    x = 490,089,484.18/28,231.26
  6. Step 6: Final answer
    x = 17,359.82

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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.