Home / 20,419.02-30,641.49-11,065.41

Finding the Fourth Proportional to 20,419.02, 30,641.49 and 11,065.41

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Solution

The fourth proportional to 20,419.02, 30,641.49 and 11,065.41 is: 16,605.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,419.02 : 30,641.49 = 11,065.41 : x
  2. Step 2: Convert to fraction form
    20,419.02/30,641.49 = 11,065.41/x
  3. Step 3: Cross multiply
    20,419.02x = 30,641.49 × 11,065.41
  4. Step 4: Simplify right side
    20,419.02x = 339,060,649.86
  5. Step 5: Solve for x
    x = 339,060,649.86/20,419.02
  6. Step 6: Final answer
    x = 16,605.14

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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.