Home / 28,589.73-42,912.33-13,809.03

Finding the Fourth Proportional to 28,589.73, 42,912.33 and 13,809.03

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Solution

The fourth proportional to 28,589.73, 42,912.33 and 13,809.03 is: 20,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,589.73 : 42,912.33 = 13,809.03 : x
  2. Step 2: Convert to fraction form
    28,589.73/42,912.33 = 13,809.03/x
  3. Step 3: Cross multiply
    28,589.73x = 42,912.33 × 13,809.03
  4. Step 4: Simplify right side
    28,589.73x = 592,577,652.34
  5. Step 5: Solve for x
    x = 592,577,652.34/28,589.73
  6. Step 6: Final answer
    x = 20,726.94

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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.