Home / 19,518.24-26,912.88-15,539.52

Finding the Fourth Proportional to 19,518.24, 26,912.88 and 15,539.52

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Solution

The fourth proportional to 19,518.24, 26,912.88 and 15,539.52 is: 21,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518.24 : 26,912.88 = 15,539.52 : x
  2. Step 2: Convert to fraction form
    19,518.24/26,912.88 = 15,539.52/x
  3. Step 3: Cross multiply
    19,518.24x = 26,912.88 × 15,539.52
  4. Step 4: Simplify right side
    19,518.24x = 418,213,237.02
  5. Step 5: Solve for x
    x = 418,213,237.02/19,518.24
  6. Step 6: Final answer
    x = 21,426.79

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1.5x scale

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.