Home / 38,365.74-57,440.40-20,313.06

Finding the Fourth Proportional to 38,365.74, 57,440.40 and 20,313.06

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Solution

The fourth proportional to 38,365.74, 57,440.40 and 20,313.06 is: 30,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,365.74 : 57,440.40 = 20,313.06 : x
  2. Step 2: Convert to fraction form
    38,365.74/57,440.40 = 20,313.06/x
  3. Step 3: Cross multiply
    38,365.74x = 57,440.40 × 20,313.06
  4. Step 4: Simplify right side
    38,365.74x = 1,166,790,291.62
  5. Step 5: Solve for x
    x = 1,166,790,291.62/38,365.74
  6. Step 6: Final answer
    x = 30,412.30

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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.