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Finding the Fourth Proportional to 30,669.18, 45,996.45 and 8,482.08

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Solution

The fourth proportional to 30,669.18, 45,996.45 and 8,482.08 is: 12,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,669.18 : 45,996.45 = 8,482.08 : x
  2. Step 2: Convert to fraction form
    30,669.18/45,996.45 = 8,482.08/x
  3. Step 3: Cross multiply
    30,669.18x = 45,996.45 × 8,482.08
  4. Step 4: Simplify right side
    30,669.18x = 390,145,568.62
  5. Step 5: Solve for x
    x = 390,145,568.62/30,669.18
  6. Step 6: Final answer
    x = 12,721.10

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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.