Home / 20,390.90-30,586.02-5,599.82

Finding the Fourth Proportional to 20,390.90, 30,586.02 and 5,599.82

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Solution

The fourth proportional to 20,390.90, 30,586.02 and 5,599.82 is: 8,399.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390.90 : 30,586.02 = 5,599.82 : x
  2. Step 2: Convert to fraction form
    20,390.90/30,586.02 = 5,599.82/x
  3. Step 3: Cross multiply
    20,390.90x = 30,586.02 × 5,599.82
  4. Step 4: Simplify right side
    20,390.90x = 171,276,053.59
  5. Step 5: Solve for x
    x = 171,276,053.59/20,390.90
  6. Step 6: Final answer
    x = 8,399.63

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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.