Home / 20,020.53-29,970.63-19,543.03

Finding the Fourth Proportional to 20,020.53, 29,970.63 and 19,543.03

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Solution

The fourth proportional to 20,020.53, 29,970.63 and 19,543.03 is: 29,255.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.53 : 29,970.63 = 19,543.03 : x
  2. Step 2: Convert to fraction form
    20,020.53/29,970.63 = 19,543.03/x
  3. Step 3: Cross multiply
    20,020.53x = 29,970.63 × 19,543.03
  4. Step 4: Simplify right side
    20,020.53x = 585,716,921.21
  5. Step 5: Solve for x
    x = 585,716,921.21/20,020.53
  6. Step 6: Final answer
    x = 29,255.81

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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.