Home / 28,321.30-42,487.05-11,672.23

Finding the Fourth Proportional to 28,321.30, 42,487.05 and 11,672.23

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Solution

The fourth proportional to 28,321.30, 42,487.05 and 11,672.23 is: 17,510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,321.30 : 42,487.05 = 11,672.23 : x
  2. Step 2: Convert to fraction form
    28,321.30/42,487.05 = 11,672.23/x
  3. Step 3: Cross multiply
    28,321.30x = 42,487.05 × 11,672.23
  4. Step 4: Simplify right side
    28,321.30x = 495,918,619.62
  5. Step 5: Solve for x
    x = 495,918,619.62/28,321.30
  6. Step 6: Final answer
    x = 17,510.45

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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.