Home / 19,222.15-28,663.61-18,536.89

Finding the Fourth Proportional to 19,222.15, 28,663.61 and 18,536.89

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Solution

The fourth proportional to 19,222.15, 28,663.61 and 18,536.89 is: 27,641.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.15 : 28,663.61 = 18,536.89 : x
  2. Step 2: Convert to fraction form
    19,222.15/28,663.61 = 18,536.89/x
  3. Step 3: Cross multiply
    19,222.15x = 28,663.61 × 18,536.89
  4. Step 4: Simplify right side
    19,222.15x = 531,334,185.57
  5. Step 5: Solve for x
    x = 531,334,185.57/19,222.15
  6. Step 6: Final answer
    x = 27,641.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.