Home / 19,900.21-29,852.26-7,417.31

Finding the Fourth Proportional to 19,900.21, 29,852.26 and 7,417.31

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Solution

The fourth proportional to 19,900.21, 29,852.26 and 7,417.31 is: 11,126.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.21 : 29,852.26 = 7,417.31 : x
  2. Step 2: Convert to fraction form
    19,900.21/29,852.26 = 7,417.31/x
  3. Step 3: Cross multiply
    19,900.21x = 29,852.26 × 7,417.31
  4. Step 4: Simplify right side
    19,900.21x = 221,423,466.62
  5. Step 5: Solve for x
    x = 221,423,466.62/19,900.21
  6. Step 6: Final answer
    x = 11,126.69

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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.