Home / 38,215.60-57,323.76-11,561.80

Finding the Fourth Proportional to 38,215.60, 57,323.76 and 11,561.80

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Solution

The fourth proportional to 38,215.60, 57,323.76 and 11,561.80 is: 17,342.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,215.60 : 57,323.76 = 11,561.80 : x
  2. Step 2: Convert to fraction form
    38,215.60/57,323.76 = 11,561.80/x
  3. Step 3: Cross multiply
    38,215.60x = 57,323.76 × 11,561.80
  4. Step 4: Simplify right side
    38,215.60x = 662,765,848.37
  5. Step 5: Solve for x
    x = 662,765,848.37/38,215.60
  6. Step 6: Final answer
    x = 17,342.81

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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.