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Finding the Fourth Proportional to 30,444.56, 45,666.88 and 8,257.92

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Solution

The fourth proportional to 30,444.56, 45,666.88 and 8,257.92 is: 12,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,444.56 : 45,666.88 = 8,257.92 : x
  2. Step 2: Convert to fraction form
    30,444.56/45,666.88 = 8,257.92/x
  3. Step 3: Cross multiply
    30,444.56x = 45,666.88 × 8,257.92
  4. Step 4: Simplify right side
    30,444.56x = 377,113,441.69
  5. Step 5: Solve for x
    x = 377,113,441.69/30,444.56
  6. Step 6: Final answer
    x = 12,386.89

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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.