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Finding the Fourth Proportional to 34,339.84, 51,509.64 and 12,154.48

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Solution

The fourth proportional to 34,339.84, 51,509.64 and 12,154.48 is: 18,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,339.84 : 51,509.64 = 12,154.48 : x
  2. Step 2: Convert to fraction form
    34,339.84/51,509.64 = 12,154.48/x
  3. Step 3: Cross multiply
    34,339.84x = 51,509.64 × 12,154.48
  4. Step 4: Simplify right side
    34,339.84x = 626,072,889.19
  5. Step 5: Solve for x
    x = 626,072,889.19/34,339.84
  6. Step 6: Final answer
    x = 18,231.68

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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.