Home / 28,638.36-39,521.38-17,306.28

Finding the Fourth Proportional to 28,638.36, 39,521.38 and 17,306.28

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Solution

The fourth proportional to 28,638.36, 39,521.38 and 17,306.28 is: 23,882.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638.36 : 39,521.38 = 17,306.28 : x
  2. Step 2: Convert to fraction form
    28,638.36/39,521.38 = 17,306.28/x
  3. Step 3: Cross multiply
    28,638.36x = 39,521.38 × 17,306.28
  4. Step 4: Simplify right side
    28,638.36x = 683,968,068.27
  5. Step 5: Solve for x
    x = 683,968,068.27/28,638.36
  6. Step 6: Final answer
    x = 23,882.93

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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.