Home / 21,551.22-29,730.87-15,573.42

Finding the Fourth Proportional to 21,551.22, 29,730.87 and 15,573.42

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Solution

The fourth proportional to 21,551.22, 29,730.87 and 15,573.42 is: 21,484.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.22 : 29,730.87 = 15,573.42 : x
  2. Step 2: Convert to fraction form
    21,551.22/29,730.87 = 15,573.42/x
  3. Step 3: Cross multiply
    21,551.22x = 29,730.87 × 15,573.42
  4. Step 4: Simplify right side
    21,551.22x = 463,011,325.48
  5. Step 5: Solve for x
    x = 463,011,325.48/21,551.22
  6. Step 6: Final answer
    x = 21,484.23

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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.