Home / 38,991.18-53,807.79-21,086.01

Finding the Fourth Proportional to 38,991.18, 53,807.79 and 21,086.01

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Solution

The fourth proportional to 38,991.18, 53,807.79 and 21,086.01 is: 29,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,991.18 : 53,807.79 = 21,086.01 : x
  2. Step 2: Convert to fraction form
    38,991.18/53,807.79 = 21,086.01/x
  3. Step 3: Cross multiply
    38,991.18x = 53,807.79 × 21,086.01
  4. Step 4: Simplify right side
    38,991.18x = 1,134,591,598.02
  5. Step 5: Solve for x
    x = 1,134,591,598.02/38,991.18
  6. Step 6: Final answer
    x = 29,098.67

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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.