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Finding the Fourth Proportional to 34,289.60, 51,434.40 and 9,662.40

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Solution

The fourth proportional to 34,289.60, 51,434.40 and 9,662.40 is: 14,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,289.60 : 51,434.40 = 9,662.40 : x
  2. Step 2: Convert to fraction form
    34,289.60/51,434.40 = 9,662.40/x
  3. Step 3: Cross multiply
    34,289.60x = 51,434.40 × 9,662.40
  4. Step 4: Simplify right side
    34,289.60x = 496,979,746.56
  5. Step 5: Solve for x
    x = 496,979,746.56/34,289.60
  6. Step 6: Final answer
    x = 14,493.60

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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.