Home / 28,138.61-38,833.61-17,529.81

Finding the Fourth Proportional to 28,138.61, 38,833.61 and 17,529.81

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Solution

The fourth proportional to 28,138.61, 38,833.61 and 17,529.81 is: 24,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,138.61 : 38,833.61 = 17,529.81 : x
  2. Step 2: Convert to fraction form
    28,138.61/38,833.61 = 17,529.81/x
  3. Step 3: Cross multiply
    28,138.61x = 38,833.61 × 17,529.81
  4. Step 4: Simplify right side
    28,138.61x = 680,745,717.27
  5. Step 5: Solve for x
    x = 680,745,717.27/28,138.61
  6. Step 6: Final answer
    x = 24,192.59

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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.