Home / 28,060.72-42,078.77-10,518.25

Finding the Fourth Proportional to 28,060.72, 42,078.77 and 10,518.25

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Solution

The fourth proportional to 28,060.72, 42,078.77 and 10,518.25 is: 15,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.72 : 42,078.77 = 10,518.25 : x
  2. Step 2: Convert to fraction form
    28,060.72/42,078.77 = 10,518.25/x
  3. Step 3: Cross multiply
    28,060.72x = 42,078.77 × 10,518.25
  4. Step 4: Simplify right side
    28,060.72x = 442,594,969.96
  5. Step 5: Solve for x
    x = 442,594,969.96/28,060.72
  6. Step 6: Final answer
    x = 15,772.76

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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.