Home / 21,230.49-29,266.48-13,675.32

Finding the Fourth Proportional to 21,230.49, 29,266.48 and 13,675.32

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Solution

The fourth proportional to 21,230.49, 29,266.48 and 13,675.32 is: 18,851.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.49 : 29,266.48 = 13,675.32 : x
  2. Step 2: Convert to fraction form
    21,230.49/29,266.48 = 13,675.32/x
  3. Step 3: Cross multiply
    21,230.49x = 29,266.48 × 13,675.32
  4. Step 4: Simplify right side
    21,230.49x = 400,228,479.27
  5. Step 5: Solve for x
    x = 400,228,479.27/21,230.49
  6. Step 6: Final answer
    x = 18,851.59

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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.