Home / 21,749.52-30,014.28-11,813.52

Finding the Fourth Proportional to 21,749.52, 30,014.28 and 11,813.52

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Solution

The fourth proportional to 21,749.52, 30,014.28 and 11,813.52 is: 16,302.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.52 : 30,014.28 = 11,813.52 : x
  2. Step 2: Convert to fraction form
    21,749.52/30,014.28 = 11,813.52/x
  3. Step 3: Cross multiply
    21,749.52x = 30,014.28 × 11,813.52
  4. Step 4: Simplify right side
    21,749.52x = 354,574,297.07
  5. Step 5: Solve for x
    x = 354,574,297.07/21,749.52
  6. Step 6: Final answer
    x = 16,302.63

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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.