Home / 28,087.29-42,130.23-11,447.26

Finding the Fourth Proportional to 28,087.29, 42,130.23 and 11,447.26

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Solution

The fourth proportional to 28,087.29, 42,130.23 and 11,447.26 is: 17,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.29 : 42,130.23 = 11,447.26 : x
  2. Step 2: Convert to fraction form
    28,087.29/42,130.23 = 11,447.26/x
  3. Step 3: Cross multiply
    28,087.29x = 42,130.23 × 11,447.26
  4. Step 4: Simplify right side
    28,087.29x = 482,275,548.42
  5. Step 5: Solve for x
    x = 482,275,548.42/28,087.29
  6. Step 6: Final answer
    x = 17,170.60

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1.5x scale

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.