Home / 28,526.88-39,354-18,458.60

Finding the Fourth Proportional to 28,526.88, 39,354 and 18,458.60

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Solution

The fourth proportional to 28,526.88, 39,354 and 18,458.60 is: 25,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.88 : 39,354 = 18,458.60 : x
  2. Step 2: Convert to fraction form
    28,526.88/39,354 = 18,458.60/x
  3. Step 3: Cross multiply
    28,526.88x = 39,354 × 18,458.60
  4. Step 4: Simplify right side
    28,526.88x = 726,419,744.40
  5. Step 5: Solve for x
    x = 726,419,744.40/28,526.88
  6. Step 6: Final answer
    x = 25,464.40

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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.