Home / 26,143.81-39,193.81-18,223.09

Finding the Fourth Proportional to 26,143.81, 39,193.81 and 18,223.09

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Solution

The fourth proportional to 26,143.81, 39,193.81 and 18,223.09 is: 27,319.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,143.81 : 39,193.81 = 18,223.09 : x
  2. Step 2: Convert to fraction form
    26,143.81/39,193.81 = 18,223.09/x
  3. Step 3: Cross multiply
    26,143.81x = 39,193.81 × 18,223.09
  4. Step 4: Simplify right side
    26,143.81x = 714,232,327.07
  5. Step 5: Solve for x
    x = 714,232,327.07/26,143.81
  6. Step 6: Final answer
    x = 27,319.37

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1.5x scale

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.