Home / 28,758.06-39,686.19-16,182.81

Finding the Fourth Proportional to 28,758.06, 39,686.19 and 16,182.81

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Solution

The fourth proportional to 28,758.06, 39,686.19 and 16,182.81 is: 22,332.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.06 : 39,686.19 = 16,182.81 : x
  2. Step 2: Convert to fraction form
    28,758.06/39,686.19 = 16,182.81/x
  3. Step 3: Cross multiply
    28,758.06x = 39,686.19 × 16,182.81
  4. Step 4: Simplify right side
    28,758.06x = 642,234,072.39
  5. Step 5: Solve for x
    x = 642,234,072.39/28,758.06
  6. Step 6: Final answer
    x = 22,332.32

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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.