Home / 21,325.88-29,429.07-12,372.77

Finding the Fourth Proportional to 21,325.88, 29,429.07 and 12,372.77

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Solution

The fourth proportional to 21,325.88, 29,429.07 and 12,372.77 is: 17,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.88 : 29,429.07 = 12,372.77 : x
  2. Step 2: Convert to fraction form
    21,325.88/29,429.07 = 12,372.77/x
  3. Step 3: Cross multiply
    21,325.88x = 29,429.07 × 12,372.77
  4. Step 4: Simplify right side
    21,325.88x = 364,118,967.28
  5. Step 5: Solve for x
    x = 364,118,967.28/21,325.88
  6. Step 6: Final answer
    x = 17,074.05

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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.