Home / 20,154.02-30,180.75-12,736.10

Finding the Fourth Proportional to 20,154.02, 30,180.75 and 12,736.10

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Solution

The fourth proportional to 20,154.02, 30,180.75 and 12,736.10 is: 19,072.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.02 : 30,180.75 = 12,736.10 : x
  2. Step 2: Convert to fraction form
    20,154.02/30,180.75 = 12,736.10/x
  3. Step 3: Cross multiply
    20,154.02x = 30,180.75 × 12,736.10
  4. Step 4: Simplify right side
    20,154.02x = 384,385,050.08
  5. Step 5: Solve for x
    x = 384,385,050.08/20,154.02
  6. Step 6: Final answer
    x = 19,072.38

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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.