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Finding the Fourth Proportional to 28,952.40, 43,396.20 and 16,478.40

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Solution

The fourth proportional to 28,952.40, 43,396.20 and 16,478.40 is: 24,699.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,952.40 : 43,396.20 = 16,478.40 : x
  2. Step 2: Convert to fraction form
    28,952.40/43,396.20 = 16,478.40/x
  3. Step 3: Cross multiply
    28,952.40x = 43,396.20 × 16,478.40
  4. Step 4: Simplify right side
    28,952.40x = 715,099,942.08
  5. Step 5: Solve for x
    x = 715,099,942.08/28,952.40
  6. Step 6: Final answer
    x = 24,699.16

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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.