Home / 35,447.78-53,172.70-13,256.91

Finding the Fourth Proportional to 35,447.78, 53,172.70 and 13,256.91

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Solution

The fourth proportional to 35,447.78, 53,172.70 and 13,256.91 is: 19,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,447.78 : 53,172.70 = 13,256.91 : x
  2. Step 2: Convert to fraction form
    35,447.78/53,172.70 = 13,256.91/x
  3. Step 3: Cross multiply
    35,447.78x = 53,172.70 × 13,256.91
  4. Step 4: Simplify right side
    35,447.78x = 704,905,665.21
  5. Step 5: Solve for x
    x = 704,905,665.21/35,447.78
  6. Step 6: Final answer
    x = 19,885.75

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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.