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Finding the Fourth Proportional to 30,383.63, 45,595.70 and 11,679.11

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Solution

The fourth proportional to 30,383.63, 45,595.70 and 11,679.11 is: 17,526.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.63 : 45,595.70 = 11,679.11 : x
  2. Step 2: Convert to fraction form
    30,383.63/45,595.70 = 11,679.11/x
  3. Step 3: Cross multiply
    30,383.63x = 45,595.70 × 11,679.11
  4. Step 4: Simplify right side
    30,383.63x = 532,516,909.45
  5. Step 5: Solve for x
    x = 532,516,909.45/30,383.63
  6. Step 6: Final answer
    x = 17,526.44

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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.