Home / 21,317.82-29,424.76-12,367.32

Finding the Fourth Proportional to 21,317.82, 29,424.76 and 12,367.32

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Solution

The fourth proportional to 21,317.82, 29,424.76 and 12,367.32 is: 17,070.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.82 : 29,424.76 = 12,367.32 : x
  2. Step 2: Convert to fraction form
    21,317.82/29,424.76 = 12,367.32/x
  3. Step 3: Cross multiply
    21,317.82x = 29,424.76 × 12,367.32
  4. Step 4: Simplify right side
    21,317.82x = 363,905,422.84
  5. Step 5: Solve for x
    x = 363,905,422.84/21,317.82
  6. Step 6: Final answer
    x = 17,070.48

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1.5x scale

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.