Home / 28,464.98-42,695.78-8,743.72

Finding the Fourth Proportional to 28,464.98, 42,695.78 and 8,743.72

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Solution

The fourth proportional to 28,464.98, 42,695.78 and 8,743.72 is: 13,115.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.98 : 42,695.78 = 8,743.72 : x
  2. Step 2: Convert to fraction form
    28,464.98/42,695.78 = 8,743.72/x
  3. Step 3: Cross multiply
    28,464.98x = 42,695.78 × 8,743.72
  4. Step 4: Simplify right side
    28,464.98x = 373,319,945.50
  5. Step 5: Solve for x
    x = 373,319,945.50/28,464.98
  6. Step 6: Final answer
    x = 13,115.06

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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.