Home / 38,518.32-53,103.88-30,586.80

Finding the Fourth Proportional to 38,518.32, 53,103.88 and 30,586.80

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Solution

The fourth proportional to 38,518.32, 53,103.88 and 30,586.80 is: 42,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,518.32 : 53,103.88 = 30,586.80 : x
  2. Step 2: Convert to fraction form
    38,518.32/53,103.88 = 30,586.80/x
  3. Step 3: Cross multiply
    38,518.32x = 53,103.88 × 30,586.80
  4. Step 4: Simplify right side
    38,518.32x = 1,624,277,756.78
  5. Step 5: Solve for x
    x = 1,624,277,756.78/38,518.32
  6. Step 6: Final answer
    x = 42,168.97

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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.