Home / 26,431.78-36,472.50-15,102.01

Finding the Fourth Proportional to 26,431.78, 36,472.50 and 15,102.01

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Solution

The fourth proportional to 26,431.78, 36,472.50 and 15,102.01 is: 20,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.78 : 36,472.50 = 15,102.01 : x
  2. Step 2: Convert to fraction form
    26,431.78/36,472.50 = 15,102.01/x
  3. Step 3: Cross multiply
    26,431.78x = 36,472.50 × 15,102.01
  4. Step 4: Simplify right side
    26,431.78x = 550,808,224.81
  5. Step 5: Solve for x
    x = 550,808,224.81/26,431.78
  6. Step 6: Final answer
    x = 20,838.86

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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.