Home / 28,678.43-39,569.30-16,734.95

Finding the Fourth Proportional to 28,678.43, 39,569.30 and 16,734.95

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Solution

The fourth proportional to 28,678.43, 39,569.30 and 16,734.95 is: 23,090.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.43 : 39,569.30 = 16,734.95 : x
  2. Step 2: Convert to fraction form
    28,678.43/39,569.30 = 16,734.95/x
  3. Step 3: Cross multiply
    28,678.43x = 39,569.30 × 16,734.95
  4. Step 4: Simplify right side
    28,678.43x = 662,190,101.03
  5. Step 5: Solve for x
    x = 662,190,101.03/28,678.43
  6. Step 6: Final answer
    x = 23,090.18

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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.