Home / 28,098.39-38,775.26-15,522.87

Finding the Fourth Proportional to 28,098.39, 38,775.26 and 15,522.87

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Solution

The fourth proportional to 28,098.39, 38,775.26 and 15,522.87 is: 21,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.39 : 38,775.26 = 15,522.87 : x
  2. Step 2: Convert to fraction form
    28,098.39/38,775.26 = 15,522.87/x
  3. Step 3: Cross multiply
    28,098.39x = 38,775.26 × 15,522.87
  4. Step 4: Simplify right side
    28,098.39x = 601,903,242.58
  5. Step 5: Solve for x
    x = 601,903,242.58/28,098.39
  6. Step 6: Final answer
    x = 21,421.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.