Home / 38,286.16-52,837.18-21,290.54

Finding the Fourth Proportional to 38,286.16, 52,837.18 and 21,290.54

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Solution

The fourth proportional to 38,286.16, 52,837.18 and 21,290.54 is: 29,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.16 : 52,837.18 = 21,290.54 : x
  2. Step 2: Convert to fraction form
    38,286.16/52,837.18 = 21,290.54/x
  3. Step 3: Cross multiply
    38,286.16x = 52,837.18 × 21,290.54
  4. Step 4: Simplify right side
    38,286.16x = 1,124,931,776.86
  5. Step 5: Solve for x
    x = 1,124,931,776.86/38,286.16
  6. Step 6: Final answer
    x = 29,382.21

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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.