Home / 30,340.48-45,479.92-11,615.72

Finding the Fourth Proportional to 30,340.48, 45,479.92 and 11,615.72

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Solution

The fourth proportional to 30,340.48, 45,479.92 and 11,615.72 is: 17,411.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.48 : 45,479.92 = 11,615.72 : x
  2. Step 2: Convert to fraction form
    30,340.48/45,479.92 = 11,615.72/x
  3. Step 3: Cross multiply
    30,340.48x = 45,479.92 × 11,615.72
  4. Step 4: Simplify right side
    30,340.48x = 528,282,016.34
  5. Step 5: Solve for x
    x = 528,282,016.34/30,340.48
  6. Step 6: Final answer
    x = 17,411.79

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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.