Home / 21,448.51-29,599.15-11,888.60

Finding the Fourth Proportional to 21,448.51, 29,599.15 and 11,888.60

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Solution

The fourth proportional to 21,448.51, 29,599.15 and 11,888.60 is: 16,406.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.51 : 29,599.15 = 11,888.60 : x
  2. Step 2: Convert to fraction form
    21,448.51/29,599.15 = 11,888.60/x
  3. Step 3: Cross multiply
    21,448.51x = 29,599.15 × 11,888.60
  4. Step 4: Simplify right side
    21,448.51x = 351,892,536.38
  5. Step 5: Solve for x
    x = 351,892,536.38/21,448.51
  6. Step 6: Final answer
    x = 16,406.39

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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.