Home / 21,274.24-31,931.07-10,751.67

Finding the Fourth Proportional to 21,274.24, 31,931.07 and 10,751.67

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Solution

The fourth proportional to 21,274.24, 31,931.07 and 10,751.67 is: 16,137.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.24 : 31,931.07 = 10,751.67 : x
  2. Step 2: Convert to fraction form
    21,274.24/31,931.07 = 10,751.67/x
  3. Step 3: Cross multiply
    21,274.24x = 31,931.07 × 10,751.67
  4. Step 4: Simplify right side
    21,274.24x = 343,312,327.39
  5. Step 5: Solve for x
    x = 343,312,327.39/21,274.24
  6. Step 6: Final answer
    x = 16,137.47

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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.