Home / 28,020.60-38,674.80-16,696.17

Finding the Fourth Proportional to 28,020.60, 38,674.80 and 16,696.17

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Solution

The fourth proportional to 28,020.60, 38,674.80 and 16,696.17 is: 23,044.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.60 : 38,674.80 = 16,696.17 : x
  2. Step 2: Convert to fraction form
    28,020.60/38,674.80 = 16,696.17/x
  3. Step 3: Cross multiply
    28,020.60x = 38,674.80 × 16,696.17
  4. Step 4: Simplify right side
    28,020.60x = 645,721,035.52
  5. Step 5: Solve for x
    x = 645,721,035.52/28,020.60
  6. Step 6: Final answer
    x = 23,044.51

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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.