Home / 39,570.96-54,607.80-21,665.82

Finding the Fourth Proportional to 39,570.96, 54,607.80 and 21,665.82

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Solution

The fourth proportional to 39,570.96, 54,607.80 and 21,665.82 is: 29,898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.96 : 54,607.80 = 21,665.82 : x
  2. Step 2: Convert to fraction form
    39,570.96/54,607.80 = 21,665.82/x
  3. Step 3: Cross multiply
    39,570.96x = 54,607.80 × 21,665.82
  4. Step 4: Simplify right side
    39,570.96x = 1,183,122,765.40
  5. Step 5: Solve for x
    x = 1,183,122,765.40/39,570.96
  6. Step 6: Final answer
    x = 29,898.76

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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.