Home / 28,808.92-39,735.31-22,018.28

Finding the Fourth Proportional to 28,808.92, 39,735.31 and 22,018.28

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Solution

The fourth proportional to 28,808.92, 39,735.31 and 22,018.28 is: 30,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.92 : 39,735.31 = 22,018.28 : x
  2. Step 2: Convert to fraction form
    28,808.92/39,735.31 = 22,018.28/x
  3. Step 3: Cross multiply
    28,808.92x = 39,735.31 × 22,018.28
  4. Step 4: Simplify right side
    28,808.92x = 874,903,071.38
  5. Step 5: Solve for x
    x = 874,903,071.38/28,808.92
  6. Step 6: Final answer
    x = 30,369.18

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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.