Home / 30,456.10-45,672.05-11,725.76

Finding the Fourth Proportional to 30,456.10, 45,672.05 and 11,725.76

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Solution

The fourth proportional to 30,456.10, 45,672.05 and 11,725.76 is: 17,583.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456.10 : 45,672.05 = 11,725.76 : x
  2. Step 2: Convert to fraction form
    30,456.10/45,672.05 = 11,725.76/x
  3. Step 3: Cross multiply
    30,456.10x = 45,672.05 × 11,725.76
  4. Step 4: Simplify right side
    30,456.10x = 535,539,640.50
  5. Step 5: Solve for x
    x = 535,539,640.50/30,456.10
  6. Step 6: Final answer
    x = 17,583.99

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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.