Home / 14,344.61-21,372.73-13,538.86

Finding the Fourth Proportional to 14,344.61, 21,372.73 and 13,538.86

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Solution

The fourth proportional to 14,344.61, 21,372.73 and 13,538.86 is: 20,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,344.61 : 21,372.73 = 13,538.86 : x
  2. Step 2: Convert to fraction form
    14,344.61/21,372.73 = 13,538.86/x
  3. Step 3: Cross multiply
    14,344.61x = 21,372.73 × 13,538.86
  4. Step 4: Simplify right side
    14,344.61x = 289,362,508.39
  5. Step 5: Solve for x
    x = 289,362,508.39/14,344.61
  6. Step 6: Final answer
    x = 20,172.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.