Home / 21,064.47-31,600.34-6,271.84

Finding the Fourth Proportional to 21,064.47, 31,600.34 and 6,271.84

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Solution

The fourth proportional to 21,064.47, 31,600.34 and 6,271.84 is: 9,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.47 : 31,600.34 = 6,271.84 : x
  2. Step 2: Convert to fraction form
    21,064.47/31,600.34 = 6,271.84/x
  3. Step 3: Cross multiply
    21,064.47x = 31,600.34 × 6,271.84
  4. Step 4: Simplify right side
    21,064.47x = 198,192,276.43
  5. Step 5: Solve for x
    x = 198,192,276.43/21,064.47
  6. Step 6: Final answer
    x = 9,408.84

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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.