Home / 28,862.22-43,294.89-9,139.29

Finding the Fourth Proportional to 28,862.22, 43,294.89 and 9,139.29

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Solution

The fourth proportional to 28,862.22, 43,294.89 and 9,139.29 is: 13,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,862.22 : 43,294.89 = 9,139.29 : x
  2. Step 2: Convert to fraction form
    28,862.22/43,294.89 = 9,139.29/x
  3. Step 3: Cross multiply
    28,862.22x = 43,294.89 × 9,139.29
  4. Step 4: Simplify right side
    28,862.22x = 395,684,555.23
  5. Step 5: Solve for x
    x = 395,684,555.23/28,862.22
  6. Step 6: Final answer
    x = 13,709.43

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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.