Home / 28,053.63-42,040.35-20,599.61

Finding the Fourth Proportional to 28,053.63, 42,040.35 and 20,599.61

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Solution

The fourth proportional to 28,053.63, 42,040.35 and 20,599.61 is: 30,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.63 : 42,040.35 = 20,599.61 : x
  2. Step 2: Convert to fraction form
    28,053.63/42,040.35 = 20,599.61/x
  3. Step 3: Cross multiply
    28,053.63x = 42,040.35 × 20,599.61
  4. Step 4: Simplify right side
    28,053.63x = 866,014,604.06
  5. Step 5: Solve for x
    x = 866,014,604.06/28,053.63
  6. Step 6: Final answer
    x = 30,869.97

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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.