Home / 28,040.83-42,055.30-10,511.95

Finding the Fourth Proportional to 28,040.83, 42,055.30 and 10,511.95

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Solution

The fourth proportional to 28,040.83, 42,055.30 and 10,511.95 is: 15,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.83 : 42,055.30 = 10,511.95 : x
  2. Step 2: Convert to fraction form
    28,040.83/42,055.30 = 10,511.95/x
  3. Step 3: Cross multiply
    28,040.83x = 42,055.30 × 10,511.95
  4. Step 4: Simplify right side
    28,040.83x = 442,083,210.84
  5. Step 5: Solve for x
    x = 442,083,210.84/28,040.83
  6. Step 6: Final answer
    x = 15,765.70

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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.