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Finding the Fourth Proportional to 28,497.33, 42,752.67 and 8,775.45

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Solution

The fourth proportional to 28,497.33, 42,752.67 and 8,775.45 is: 13,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.33 : 42,752.67 = 8,775.45 : x
  2. Step 2: Convert to fraction form
    28,497.33/42,752.67 = 8,775.45/x
  3. Step 3: Cross multiply
    28,497.33x = 42,752.67 × 8,775.45
  4. Step 4: Simplify right side
    28,497.33x = 375,173,917.95
  5. Step 5: Solve for x
    x = 375,173,917.95/28,497.33
  6. Step 6: Final answer
    x = 13,165.23

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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.