Home / 39,084.16-53,935.58-21,178.76

Finding the Fourth Proportional to 39,084.16, 53,935.58 and 21,178.76

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Solution

The fourth proportional to 39,084.16, 53,935.58 and 21,178.76 is: 29,226.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,084.16 : 53,935.58 = 21,178.76 : x
  2. Step 2: Convert to fraction form
    39,084.16/53,935.58 = 21,178.76/x
  3. Step 3: Cross multiply
    39,084.16x = 53,935.58 × 21,178.76
  4. Step 4: Simplify right side
    39,084.16x = 1,142,288,704.28
  5. Step 5: Solve for x
    x = 1,142,288,704.28/39,084.16
  6. Step 6: Final answer
    x = 29,226.38

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Find fourth proportional to 39,085.16, 53,936.96 and 21,179.76
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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.