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Finding the Fourth Proportional to 30,354.70, 45,533.40 and 10,363.90

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Solution

The fourth proportional to 30,354.70, 45,533.40 and 10,363.90 is: 15,546.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,354.70 : 45,533.40 = 10,363.90 : x
  2. Step 2: Convert to fraction form
    30,354.70/45,533.40 = 10,363.90/x
  3. Step 3: Cross multiply
    30,354.70x = 45,533.40 × 10,363.90
  4. Step 4: Simplify right side
    30,354.70x = 471,903,604.26
  5. Step 5: Solve for x
    x = 471,903,604.26/30,354.70
  6. Step 6: Final answer
    x = 15,546.31

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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.