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Finding the Fourth Proportional to 30,122.64, 45,125.64 and 14,551.20

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Solution

The fourth proportional to 30,122.64, 45,125.64 and 14,551.20 is: 21,798.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.64 : 45,125.64 = 14,551.20 : x
  2. Step 2: Convert to fraction form
    30,122.64/45,125.64 = 14,551.20/x
  3. Step 3: Cross multiply
    30,122.64x = 45,125.64 × 14,551.20
  4. Step 4: Simplify right side
    30,122.64x = 656,632,212.77
  5. Step 5: Solve for x
    x = 656,632,212.77/30,122.64
  6. Step 6: Final answer
    x = 21,798.63

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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.