Home / 21,615.29-29,853.71-14,529.41

Finding the Fourth Proportional to 21,615.29, 29,853.71 and 14,529.41

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Solution

The fourth proportional to 21,615.29, 29,853.71 and 14,529.41 is: 20,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.29 : 29,853.71 = 14,529.41 : x
  2. Step 2: Convert to fraction form
    21,615.29/29,853.71 = 14,529.41/x
  3. Step 3: Cross multiply
    21,615.29x = 29,853.71 × 14,529.41
  4. Step 4: Simplify right side
    21,615.29x = 433,756,570.70
  5. Step 5: Solve for x
    x = 433,756,570.70/21,615.29
  6. Step 6: Final answer
    x = 20,067.12

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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.