Home / 14,270.10-21,405.15-3,740.10

Finding the Fourth Proportional to 14,270.10, 21,405.15 and 3,740.10

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Solution

The fourth proportional to 14,270.10, 21,405.15 and 3,740.10 is: 5,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,270.10 : 21,405.15 = 3,740.10 : x
  2. Step 2: Convert to fraction form
    14,270.10/21,405.15 = 3,740.10/x
  3. Step 3: Cross multiply
    14,270.10x = 21,405.15 × 3,740.10
  4. Step 4: Simplify right side
    14,270.10x = 80,057,401.52
  5. Step 5: Solve for x
    x = 80,057,401.52/14,270.10
  6. Step 6: Final answer
    x = 5,610.15

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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.