Home / 35,427.08-53,139.08-13,240.64

Finding the Fourth Proportional to 35,427.08, 53,139.08 and 13,240.64

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Solution

The fourth proportional to 35,427.08, 53,139.08 and 13,240.64 is: 19,860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,427.08 : 53,139.08 = 13,240.64 : x
  2. Step 2: Convert to fraction form
    35,427.08/53,139.08 = 13,240.64/x
  3. Step 3: Cross multiply
    35,427.08x = 53,139.08 × 13,240.64
  4. Step 4: Simplify right side
    35,427.08x = 703,595,494.86
  5. Step 5: Solve for x
    x = 703,595,494.86/35,427.08
  6. Step 6: Final answer
    x = 19,860.39

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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.