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Finding the Fourth Proportional to 30,047.76, 45,066.17 and 13,404.69

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Solution

The fourth proportional to 30,047.76, 45,066.17 and 13,404.69 is: 20,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,047.76 : 45,066.17 = 13,404.69 : x
  2. Step 2: Convert to fraction form
    30,047.76/45,066.17 = 13,404.69/x
  3. Step 3: Cross multiply
    30,047.76x = 45,066.17 × 13,404.69
  4. Step 4: Simplify right side
    30,047.76x = 604,098,071.85
  5. Step 5: Solve for x
    x = 604,098,071.85/30,047.76
  6. Step 6: Final answer
    x = 20,104.60

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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.