Home / 18,522.47-27,681.75-13,535.22

Finding the Fourth Proportional to 18,522.47, 27,681.75 and 13,535.22

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Solution

The fourth proportional to 18,522.47, 27,681.75 and 13,535.22 is: 20,228.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.47 : 27,681.75 = 13,535.22 : x
  2. Step 2: Convert to fraction form
    18,522.47/27,681.75 = 13,535.22/x
  3. Step 3: Cross multiply
    18,522.47x = 27,681.75 × 13,535.22
  4. Step 4: Simplify right side
    18,522.47x = 374,678,576.24
  5. Step 5: Solve for x
    x = 374,678,576.24/18,522.47
  6. Step 6: Final answer
    x = 20,228.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.