Home / 38,402.21-52,995.63-21,405.98

Finding the Fourth Proportional to 38,402.21, 52,995.63 and 21,405.98

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Solution

The fourth proportional to 38,402.21, 52,995.63 and 21,405.98 is: 29,540.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,402.21 : 52,995.63 = 21,405.98 : x
  2. Step 2: Convert to fraction form
    38,402.21/52,995.63 = 21,405.98/x
  3. Step 3: Cross multiply
    38,402.21x = 52,995.63 × 21,405.98
  4. Step 4: Simplify right side
    38,402.21x = 1,134,423,395.87
  5. Step 5: Solve for x
    x = 1,134,423,395.87/38,402.21
  6. Step 6: Final answer
    x = 29,540.58

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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.