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Finding the Fourth Proportional to 30,362.70, 45,520.35 and 19,267.32

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Solution

The fourth proportional to 30,362.70, 45,520.35 and 19,267.32 is: 28,885.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,362.70 : 45,520.35 = 19,267.32 : x
  2. Step 2: Convert to fraction form
    30,362.70/45,520.35 = 19,267.32/x
  3. Step 3: Cross multiply
    30,362.70x = 45,520.35 × 19,267.32
  4. Step 4: Simplify right side
    30,362.70x = 877,055,149.96
  5. Step 5: Solve for x
    x = 877,055,149.96/30,362.70
  6. Step 6: Final answer
    x = 28,885.94

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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.