Home / 21,762.37-30,031.76-12,202.21

Finding the Fourth Proportional to 21,762.37, 30,031.76 and 12,202.21

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Solution

The fourth proportional to 21,762.37, 30,031.76 and 12,202.21 is: 16,838.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.37 : 30,031.76 = 12,202.21 : x
  2. Step 2: Convert to fraction form
    21,762.37/30,031.76 = 12,202.21/x
  3. Step 3: Cross multiply
    21,762.37x = 30,031.76 × 12,202.21
  4. Step 4: Simplify right side
    21,762.37x = 366,453,631.02
  5. Step 5: Solve for x
    x = 366,453,631.02/21,762.37
  6. Step 6: Final answer
    x = 16,838.87

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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.