Home / 15,900.16-21,933.12-14,016.28

Finding the Fourth Proportional to 15,900.16, 21,933.12 and 14,016.28

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Solution

The fourth proportional to 15,900.16, 21,933.12 and 14,016.28 is: 19,334.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.16 : 21,933.12 = 14,016.28 : x
  2. Step 2: Convert to fraction form
    15,900.16/21,933.12 = 14,016.28/x
  3. Step 3: Cross multiply
    15,900.16x = 21,933.12 × 14,016.28
  4. Step 4: Simplify right side
    15,900.16x = 307,420,751.19
  5. Step 5: Solve for x
    x = 307,420,751.19/15,900.16
  6. Step 6: Final answer
    x = 19,334.44

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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.