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Finding the Fourth Proportional to 28,300.95, 42,451.43 and 7,524.45

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Solution

The fourth proportional to 28,300.95, 42,451.43 and 7,524.45 is: 11,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,300.95 : 42,451.43 = 7,524.45 : x
  2. Step 2: Convert to fraction form
    28,300.95/42,451.43 = 7,524.45/x
  3. Step 3: Cross multiply
    28,300.95x = 42,451.43 × 7,524.45
  4. Step 4: Simplify right side
    28,300.95x = 319,423,624.84
  5. Step 5: Solve for x
    x = 319,423,624.84/28,300.95
  6. Step 6: Final answer
    x = 11,286.68

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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.