Home / 15,322.77-21,178.67-14,141.79

Finding the Fourth Proportional to 15,322.77, 21,178.67 and 14,141.79

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Solution

The fourth proportional to 15,322.77, 21,178.67 and 14,141.79 is: 19,546.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.77 : 21,178.67 = 14,141.79 : x
  2. Step 2: Convert to fraction form
    15,322.77/21,178.67 = 14,141.79/x
  3. Step 3: Cross multiply
    15,322.77x = 21,178.67 × 14,141.79
  4. Step 4: Simplify right side
    15,322.77x = 299,504,232.91
  5. Step 5: Solve for x
    x = 299,504,232.91/15,322.77
  6. Step 6: Final answer
    x = 19,546.35

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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.