Home / 30,315.30-45,481.17-11,585.46

Finding the Fourth Proportional to 30,315.30, 45,481.17 and 11,585.46

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Solution

The fourth proportional to 30,315.30, 45,481.17 and 11,585.46 is: 17,381.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,315.30 : 45,481.17 = 11,585.46 : x
  2. Step 2: Convert to fraction form
    30,315.30/45,481.17 = 11,585.46/x
  3. Step 3: Cross multiply
    30,315.30x = 45,481.17 × 11,585.46
  4. Step 4: Simplify right side
    30,315.30x = 526,920,275.79
  5. Step 5: Solve for x
    x = 526,920,275.79/30,315.30
  6. Step 6: Final answer
    x = 17,381.33

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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.