Home / 19,485.12-29,219.04-13,644.48

Finding the Fourth Proportional to 19,485.12, 29,219.04 and 13,644.48

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Solution

The fourth proportional to 19,485.12, 29,219.04 and 13,644.48 is: 20,460.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.12 : 29,219.04 = 13,644.48 : x
  2. Step 2: Convert to fraction form
    19,485.12/29,219.04 = 13,644.48/x
  3. Step 3: Cross multiply
    19,485.12x = 29,219.04 × 13,644.48
  4. Step 4: Simplify right side
    19,485.12x = 398,678,606.90
  5. Step 5: Solve for x
    x = 398,678,606.90/19,485.12
  6. Step 6: Final answer
    x = 20,460.67

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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.