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Finding the Fourth Proportional to 32,699.70, 49,069.80 and 12,976.20

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Solution

The fourth proportional to 32,699.70, 49,069.80 and 12,976.20 is: 19,472.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,699.70 : 49,069.80 = 12,976.20 : x
  2. Step 2: Convert to fraction form
    32,699.70/49,069.80 = 12,976.20/x
  3. Step 3: Cross multiply
    32,699.70x = 49,069.80 × 12,976.20
  4. Step 4: Simplify right side
    32,699.70x = 636,739,538.76
  5. Step 5: Solve for x
    x = 636,739,538.76/32,699.70
  6. Step 6: Final answer
    x = 19,472.34

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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.