Home / 38,653.70-57,972.45-18,946.40

Finding the Fourth Proportional to 38,653.70, 57,972.45 and 18,946.40

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Solution

The fourth proportional to 38,653.70, 57,972.45 and 18,946.40 is: 28,415.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,653.70 : 57,972.45 = 18,946.40 : x
  2. Step 2: Convert to fraction form
    38,653.70/57,972.45 = 18,946.40/x
  3. Step 3: Cross multiply
    38,653.70x = 57,972.45 × 18,946.40
  4. Step 4: Simplify right side
    38,653.70x = 1,098,369,226.68
  5. Step 5: Solve for x
    x = 1,098,369,226.68/38,653.70
  6. Step 6: Final answer
    x = 28,415.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.