Home / 27,408.40-37,815.24-18,913.36

Finding the Fourth Proportional to 27,408.40, 37,815.24 and 18,913.36

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Solution

The fourth proportional to 27,408.40, 37,815.24 and 18,913.36 is: 26,094.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,408.40 : 37,815.24 = 18,913.36 : x
  2. Step 2: Convert to fraction form
    27,408.40/37,815.24 = 18,913.36/x
  3. Step 3: Cross multiply
    27,408.40x = 37,815.24 × 18,913.36
  4. Step 4: Simplify right side
    27,408.40x = 715,213,247.61
  5. Step 5: Solve for x
    x = 715,213,247.61/27,408.40
  6. Step 6: Final answer
    x = 26,094.67

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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.