Home / 19,211.28-26,458.58-16,557.72

Finding the Fourth Proportional to 19,211.28, 26,458.58 and 16,557.72

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Solution

The fourth proportional to 19,211.28, 26,458.58 and 16,557.72 is: 22,803.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.28 : 26,458.58 = 16,557.72 : x
  2. Step 2: Convert to fraction form
    19,211.28/26,458.58 = 16,557.72/x
  3. Step 3: Cross multiply
    19,211.28x = 26,458.58 × 16,557.72
  4. Step 4: Simplify right side
    19,211.28x = 438,093,759.24
  5. Step 5: Solve for x
    x = 438,093,759.24/19,211.28
  6. Step 6: Final answer
    x = 22,803.99

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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.