Home / 18,923.07-28,384.47-4,881.91

Finding the Fourth Proportional to 18,923.07, 28,384.47 and 4,881.91

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Solution

The fourth proportional to 18,923.07, 28,384.47 and 4,881.91 is: 7,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.07 : 28,384.47 = 4,881.91 : x
  2. Step 2: Convert to fraction form
    18,923.07/28,384.47 = 4,881.91/x
  3. Step 3: Cross multiply
    18,923.07x = 28,384.47 × 4,881.91
  4. Step 4: Simplify right side
    18,923.07x = 138,570,366.85
  5. Step 5: Solve for x
    x = 138,570,366.85/18,923.07
  6. Step 6: Final answer
    x = 7,322.83

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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.