Home / 27,957.29-38,568.34-16,620.35

Finding the Fourth Proportional to 27,957.29, 38,568.34 and 16,620.35

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Solution

The fourth proportional to 27,957.29, 38,568.34 and 16,620.35 is: 22,928.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,957.29 : 38,568.34 = 16,620.35 : x
  2. Step 2: Convert to fraction form
    27,957.29/38,568.34 = 16,620.35/x
  3. Step 3: Cross multiply
    27,957.29x = 38,568.34 × 16,620.35
  4. Step 4: Simplify right side
    27,957.29x = 641,019,152.64
  5. Step 5: Solve for x
    x = 641,019,152.64/27,957.29
  6. Step 6: Final answer
    x = 22,928.52

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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.