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Finding the Fourth Proportional to 34,407.30, 51,612.03 and 12,220.32

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Solution

The fourth proportional to 34,407.30, 51,612.03 and 12,220.32 is: 18,330.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,407.30 : 51,612.03 = 12,220.32 : x
  2. Step 2: Convert to fraction form
    34,407.30/51,612.03 = 12,220.32/x
  3. Step 3: Cross multiply
    34,407.30x = 51,612.03 × 12,220.32
  4. Step 4: Simplify right side
    34,407.30x = 630,715,522.45
  5. Step 5: Solve for x
    x = 630,715,522.45/34,407.30
  6. Step 6: Final answer
    x = 18,330.86

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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.