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Finding the Fourth Proportional to 30,347.58, 45,490.16 and 11,622.54

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Solution

The fourth proportional to 30,347.58, 45,490.16 and 11,622.54 is: 17,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347.58 : 45,490.16 = 11,622.54 : x
  2. Step 2: Convert to fraction form
    30,347.58/45,490.16 = 11,622.54/x
  3. Step 3: Cross multiply
    30,347.58x = 45,490.16 × 11,622.54
  4. Step 4: Simplify right side
    30,347.58x = 528,711,204.21
  5. Step 5: Solve for x
    x = 528,711,204.21/30,347.58
  6. Step 6: Final answer
    x = 17,421.86

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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.