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Finding the Fourth Proportional to 28,513.58, 42,772.76 and 7,453.58

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Solution

The fourth proportional to 28,513.58, 42,772.76 and 7,453.58 is: 11,180.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.58 : 42,772.76 = 7,453.58 : x
  2. Step 2: Convert to fraction form
    28,513.58/42,772.76 = 7,453.58/x
  3. Step 3: Cross multiply
    28,513.58x = 42,772.76 × 7,453.58
  4. Step 4: Simplify right side
    28,513.58x = 318,809,937.35
  5. Step 5: Solve for x
    x = 318,809,937.35/28,513.58
  6. Step 6: Final answer
    x = 11,180.99

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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.