Home / 30,123.20-45,176.16-11,650.88

Finding the Fourth Proportional to 30,123.20, 45,176.16 and 11,650.88

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Solution

The fourth proportional to 30,123.20, 45,176.16 and 11,650.88 is: 17,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.20 : 45,176.16 = 11,650.88 : x
  2. Step 2: Convert to fraction form
    30,123.20/45,176.16 = 11,650.88/x
  3. Step 3: Cross multiply
    30,123.20x = 45,176.16 × 11,650.88
  4. Step 4: Simplify right side
    30,123.20x = 526,342,019.02
  5. Step 5: Solve for x
    x = 526,342,019.02/30,123.20
  6. Step 6: Final answer
    x = 17,472.98

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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.