Home / 27,239.79-40,835.03-18,923.70

Finding the Fourth Proportional to 27,239.79, 40,835.03 and 18,923.70

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Solution

The fourth proportional to 27,239.79, 40,835.03 and 18,923.70 is: 28,368.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,239.79 : 40,835.03 = 18,923.70 : x
  2. Step 2: Convert to fraction form
    27,239.79/40,835.03 = 18,923.70/x
  3. Step 3: Cross multiply
    27,239.79x = 40,835.03 × 18,923.70
  4. Step 4: Simplify right side
    27,239.79x = 772,749,762.59
  5. Step 5: Solve for x
    x = 772,749,762.59/27,239.79
  6. Step 6: Final answer
    x = 28,368.42

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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.