Home / 20,283.96-30,389.40-19,064.04

Finding the Fourth Proportional to 20,283.96, 30,389.40 and 19,064.04

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Solution

The fourth proportional to 20,283.96, 30,389.40 and 19,064.04 is: 28,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.96 : 30,389.40 = 19,064.04 : x
  2. Step 2: Convert to fraction form
    20,283.96/30,389.40 = 19,064.04/x
  3. Step 3: Cross multiply
    20,283.96x = 30,389.40 × 19,064.04
  4. Step 4: Simplify right side
    20,283.96x = 579,344,737.18
  5. Step 5: Solve for x
    x = 579,344,737.18/20,283.96
  6. Step 6: Final answer
    x = 28,561.72

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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.