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Finding the Fourth Proportional to 30,318.88, 45,484.98 and 9,260.68

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Solution

The fourth proportional to 30,318.88, 45,484.98 and 9,260.68 is: 13,893.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,318.88 : 45,484.98 = 9,260.68 : x
  2. Step 2: Convert to fraction form
    30,318.88/45,484.98 = 9,260.68/x
  3. Step 3: Cross multiply
    30,318.88x = 45,484.98 × 9,260.68
  4. Step 4: Simplify right side
    30,318.88x = 421,221,844.59
  5. Step 5: Solve for x
    x = 421,221,844.59/30,318.88
  6. Step 6: Final answer
    x = 13,893.05

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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.