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Finding the Fourth Proportional to 30,617.58, 45,921.78 and 14,603.07

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Solution

The fourth proportional to 30,617.58, 45,921.78 and 14,603.07 is: 21,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,617.58 : 45,921.78 = 14,603.07 : x
  2. Step 2: Convert to fraction form
    30,617.58/45,921.78 = 14,603.07/x
  3. Step 3: Cross multiply
    30,617.58x = 45,921.78 × 14,603.07
  4. Step 4: Simplify right side
    30,617.58x = 670,598,967.86
  5. Step 5: Solve for x
    x = 670,598,967.86/30,617.58
  6. Step 6: Final answer
    x = 21,902.42

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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.