Home / 15,313.26-21,116.76-14,420.34

Finding the Fourth Proportional to 15,313.26, 21,116.76 and 14,420.34

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Solution

The fourth proportional to 15,313.26, 21,116.76 and 14,420.34 is: 19,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.26 : 21,116.76 = 14,420.34 : x
  2. Step 2: Convert to fraction form
    15,313.26/21,116.76 = 14,420.34/x
  3. Step 3: Cross multiply
    15,313.26x = 21,116.76 × 14,420.34
  4. Step 4: Simplify right side
    15,313.26x = 304,510,858.90
  5. Step 5: Solve for x
    x = 304,510,858.90/15,313.26
  6. Step 6: Final answer
    x = 19,885.44

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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.