Home / 20,152.40-30,197.80-13,554.16

Finding the Fourth Proportional to 20,152.40, 30,197.80 and 13,554.16

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Solution

The fourth proportional to 20,152.40, 30,197.80 and 13,554.16 is: 20,310.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.40 : 30,197.80 = 13,554.16 : x
  2. Step 2: Convert to fraction form
    20,152.40/30,197.80 = 13,554.16/x
  3. Step 3: Cross multiply
    20,152.40x = 30,197.80 × 13,554.16
  4. Step 4: Simplify right side
    20,152.40x = 409,305,812.85
  5. Step 5: Solve for x
    x = 409,305,812.85/20,152.40
  6. Step 6: Final answer
    x = 20,310.52

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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.