Home / 21,137.02-31,698.14-7,094.05

Finding the Fourth Proportional to 21,137.02, 31,698.14 and 7,094.05

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Solution

The fourth proportional to 21,137.02, 31,698.14 and 7,094.05 is: 10,638.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,137.02 : 31,698.14 = 7,094.05 : x
  2. Step 2: Convert to fraction form
    21,137.02/31,698.14 = 7,094.05/x
  3. Step 3: Cross multiply
    21,137.02x = 31,698.14 × 7,094.05
  4. Step 4: Simplify right side
    21,137.02x = 224,868,128.56
  5. Step 5: Solve for x
    x = 224,868,128.56/21,137.02
  6. Step 6: Final answer
    x = 10,638.59

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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.