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Finding the Fourth Proportional to 28,012.50, 42,025.95 and 9,544.50

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Solution

The fourth proportional to 28,012.50, 42,025.95 and 9,544.50 is: 14,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.50 : 42,025.95 = 9,544.50 : x
  2. Step 2: Convert to fraction form
    28,012.50/42,025.95 = 9,544.50/x
  3. Step 3: Cross multiply
    28,012.50x = 42,025.95 × 9,544.50
  4. Step 4: Simplify right side
    28,012.50x = 401,116,679.78
  5. Step 5: Solve for x
    x = 401,116,679.78/28,012.50
  6. Step 6: Final answer
    x = 14,319.20

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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.