Home / 28,112.23-42,175.26-19,808.46

Finding the Fourth Proportional to 28,112.23, 42,175.26 and 19,808.46

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Solution

The fourth proportional to 28,112.23, 42,175.26 and 19,808.46 is: 29,717.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,112.23 : 42,175.26 = 19,808.46 : x
  2. Step 2: Convert to fraction form
    28,112.23/42,175.26 = 19,808.46/x
  3. Step 3: Cross multiply
    28,112.23x = 42,175.26 × 19,808.46
  4. Step 4: Simplify right side
    28,112.23x = 835,426,950.70
  5. Step 5: Solve for x
    x = 835,426,950.70/28,112.23
  6. Step 6: Final answer
    x = 29,717.56

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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.