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Finding the Fourth Proportional to 34,980.76, 52,497.78 and 12,815.08

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Solution

The fourth proportional to 34,980.76, 52,497.78 and 12,815.08 is: 19,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,980.76 : 52,497.78 = 12,815.08 : x
  2. Step 2: Convert to fraction form
    34,980.76/52,497.78 = 12,815.08/x
  3. Step 3: Cross multiply
    34,980.76x = 52,497.78 × 12,815.08
  4. Step 4: Simplify right side
    34,980.76x = 672,763,250.52
  5. Step 5: Solve for x
    x = 672,763,250.52/34,980.76
  6. Step 6: Final answer
    x = 19,232.38

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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.