Home / 30,194.85-45,300.11-11,475.21

Finding the Fourth Proportional to 30,194.85, 45,300.11 and 11,475.21

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Solution

The fourth proportional to 30,194.85, 45,300.11 and 11,475.21 is: 17,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,194.85 : 45,300.11 = 11,475.21 : x
  2. Step 2: Convert to fraction form
    30,194.85/45,300.11 = 11,475.21/x
  3. Step 3: Cross multiply
    30,194.85x = 45,300.11 × 11,475.21
  4. Step 4: Simplify right side
    30,194.85x = 519,828,275.27
  5. Step 5: Solve for x
    x = 519,828,275.27/30,194.85
  6. Step 6: Final answer
    x = 17,215.79

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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.