Home / 28,231.81-42,371.01-14,195.84

Finding the Fourth Proportional to 28,231.81, 42,371.01 and 14,195.84

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Solution

The fourth proportional to 28,231.81, 42,371.01 and 14,195.84 is: 21,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.81 : 42,371.01 = 14,195.84 : x
  2. Step 2: Convert to fraction form
    28,231.81/42,371.01 = 14,195.84/x
  3. Step 3: Cross multiply
    28,231.81x = 42,371.01 × 14,195.84
  4. Step 4: Simplify right side
    28,231.81x = 601,491,866.74
  5. Step 5: Solve for x
    x = 601,491,866.74/28,231.81
  6. Step 6: Final answer
    x = 21,305.47

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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.