Home / 21,689.44-29,956.03-14,603.56

Finding the Fourth Proportional to 21,689.44, 29,956.03 and 14,603.56

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Solution

The fourth proportional to 21,689.44, 29,956.03 and 14,603.56 is: 20,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,689.44 : 29,956.03 = 14,603.56 : x
  2. Step 2: Convert to fraction form
    21,689.44/29,956.03 = 14,603.56/x
  3. Step 3: Cross multiply
    21,689.44x = 29,956.03 × 14,603.56
  4. Step 4: Simplify right side
    21,689.44x = 437,464,570.07
  5. Step 5: Solve for x
    x = 437,464,570.07/21,689.44
  6. Step 6: Final answer
    x = 20,169.48

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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.