Home / 30,215.12-45,318.49-8,030.30

Finding the Fourth Proportional to 30,215.12, 45,318.49 and 8,030.30

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Solution

The fourth proportional to 30,215.12, 45,318.49 and 8,030.30 is: 12,044.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.12 : 45,318.49 = 8,030.30 : x
  2. Step 2: Convert to fraction form
    30,215.12/45,318.49 = 8,030.30/x
  3. Step 3: Cross multiply
    30,215.12x = 45,318.49 × 8,030.30
  4. Step 4: Simplify right side
    30,215.12x = 363,920,823.58
  5. Step 5: Solve for x
    x = 363,920,823.58/30,215.12
  6. Step 6: Final answer
    x = 12,044.33

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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.