Home / 38,143.35-52,640.94-21,152.93

Finding the Fourth Proportional to 38,143.35, 52,640.94 and 21,152.93

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Solution

The fourth proportional to 38,143.35, 52,640.94 and 21,152.93 is: 29,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.35 : 52,640.94 = 21,152.93 : x
  2. Step 2: Convert to fraction form
    38,143.35/52,640.94 = 21,152.93/x
  3. Step 3: Cross multiply
    38,143.35x = 52,640.94 × 21,152.93
  4. Step 4: Simplify right side
    38,143.35x = 1,113,509,855.75
  5. Step 5: Solve for x
    x = 1,113,509,855.75/38,143.35
  6. Step 6: Final answer
    x = 29,192.77

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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.