Home / 38,519.32-53,105.26-30,587.80

Finding the Fourth Proportional to 38,519.32, 53,105.26 and 30,587.80

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Solution

The fourth proportional to 38,519.32, 53,105.26 and 30,587.80 is: 42,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,519.32 : 53,105.26 = 30,587.80 : x
  2. Step 2: Convert to fraction form
    38,519.32/53,105.26 = 30,587.80/x
  3. Step 3: Cross multiply
    38,519.32x = 53,105.26 × 30,587.80
  4. Step 4: Simplify right side
    38,519.32x = 1,624,373,071.83
  5. Step 5: Solve for x
    x = 1,624,373,071.83/38,519.32
  6. Step 6: Final answer
    x = 42,170.35

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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.