Home / 28,040.58-42,054.93-10,511.70

Finding the Fourth Proportional to 28,040.58, 42,054.93 and 10,511.70

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Solution

The fourth proportional to 28,040.58, 42,054.93 and 10,511.70 is: 15,765.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.58 : 42,054.93 = 10,511.70 : x
  2. Step 2: Convert to fraction form
    28,040.58/42,054.93 = 10,511.70/x
  3. Step 3: Cross multiply
    28,040.58x = 42,054.93 × 10,511.70
  4. Step 4: Simplify right side
    28,040.58x = 442,068,807.68
  5. Step 5: Solve for x
    x = 442,068,807.68/28,040.58
  6. Step 6: Final answer
    x = 15,765.32

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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.