Home / 18,638.71-28,020.94-10,333.58

Finding the Fourth Proportional to 18,638.71, 28,020.94 and 10,333.58

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Solution

The fourth proportional to 18,638.71, 28,020.94 and 10,333.58 is: 15,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.71 : 28,020.94 = 10,333.58 : x
  2. Step 2: Convert to fraction form
    18,638.71/28,020.94 = 10,333.58/x
  3. Step 3: Cross multiply
    18,638.71x = 28,020.94 × 10,333.58
  4. Step 4: Simplify right side
    18,638.71x = 289,556,459.23
  5. Step 5: Solve for x
    x = 289,556,459.23/18,638.71
  6. Step 6: Final answer
    x = 15,535.22

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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.