Home / 30,103.48-45,160.28-11,129.24

Finding the Fourth Proportional to 30,103.48, 45,160.28 and 11,129.24

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Solution

The fourth proportional to 30,103.48, 45,160.28 and 11,129.24 is: 16,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.48 : 45,160.28 = 11,129.24 : x
  2. Step 2: Convert to fraction form
    30,103.48/45,160.28 = 11,129.24/x
  3. Step 3: Cross multiply
    30,103.48x = 45,160.28 × 11,129.24
  4. Step 4: Simplify right side
    30,103.48x = 502,599,594.59
  5. Step 5: Solve for x
    x = 502,599,594.59/30,103.48
  6. Step 6: Final answer
    x = 16,695.73

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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.