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Finding the Fourth Proportional to 28,901.53, 43,352.30 and 8,125.03

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Solution

The fourth proportional to 28,901.53, 43,352.30 and 8,125.03 is: 12,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.53 : 43,352.30 = 8,125.03 : x
  2. Step 2: Convert to fraction form
    28,901.53/43,352.30 = 8,125.03/x
  3. Step 3: Cross multiply
    28,901.53x = 43,352.30 × 8,125.03
  4. Step 4: Simplify right side
    28,901.53x = 352,238,782.10
  5. Step 5: Solve for x
    x = 352,238,782.10/28,901.53
  6. Step 6: Final answer
    x = 12,187.55

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Double scale
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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.