Home / 35,308.96-52,972.64-13,128.76

Finding the Fourth Proportional to 35,308.96, 52,972.64 and 13,128.76

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Solution

The fourth proportional to 35,308.96, 52,972.64 and 13,128.76 is: 19,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,308.96 : 52,972.64 = 13,128.76 : x
  2. Step 2: Convert to fraction form
    35,308.96/52,972.64 = 13,128.76/x
  3. Step 3: Cross multiply
    35,308.96x = 52,972.64 × 13,128.76
  4. Step 4: Simplify right side
    35,308.96x = 695,465,077.13
  5. Step 5: Solve for x
    x = 695,465,077.13/35,308.96
  6. Step 6: Final answer
    x = 19,696.56

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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.