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Finding the Fourth Proportional to 30,404.22, 45,606.06 and 12,871.50

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Solution

The fourth proportional to 30,404.22, 45,606.06 and 12,871.50 is: 19,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,404.22 : 45,606.06 = 12,871.50 : x
  2. Step 2: Convert to fraction form
    30,404.22/45,606.06 = 12,871.50/x
  3. Step 3: Cross multiply
    30,404.22x = 45,606.06 × 12,871.50
  4. Step 4: Simplify right side
    30,404.22x = 587,018,401.29
  5. Step 5: Solve for x
    x = 587,018,401.29/30,404.22
  6. Step 6: Final answer
    x = 19,307.14

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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.