Home / 28,792-39,746.28-20,301.04

Finding the Fourth Proportional to 28,792, 39,746.28 and 20,301.04

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Solution

The fourth proportional to 28,792, 39,746.28 and 20,301.04 is: 28,024.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,792 : 39,746.28 = 20,301.04 : x
  2. Step 2: Convert to fraction form
    28,792/39,746.28 = 20,301.04/x
  3. Step 3: Cross multiply
    28,792x = 39,746.28 × 20,301.04
  4. Step 4: Simplify right side
    28,792x = 806,890,820.13
  5. Step 5: Solve for x
    x = 806,890,820.13/28,792
  6. Step 6: Final answer
    x = 28,024.83

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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.