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Finding the Fourth Proportional to 19,274.10, 28,880.10 and 10,929.30

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Solution

The fourth proportional to 19,274.10, 28,880.10 and 10,929.30 is: 16,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.10 : 28,880.10 = 10,929.30 : x
  2. Step 2: Convert to fraction form
    19,274.10/28,880.10 = 10,929.30/x
  3. Step 3: Cross multiply
    19,274.10x = 28,880.10 × 10,929.30
  4. Step 4: Simplify right side
    19,274.10x = 315,639,276.93
  5. Step 5: Solve for x
    x = 315,639,276.93/19,274.10
  6. Step 6: Final answer
    x = 16,376.34

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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.