Home / 21,281.58-29,372.08-16,236.28

Finding the Fourth Proportional to 21,281.58, 29,372.08 and 16,236.28

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Solution

The fourth proportional to 21,281.58, 29,372.08 and 16,236.28 is: 22,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281.58 : 29,372.08 = 16,236.28 : x
  2. Step 2: Convert to fraction form
    21,281.58/29,372.08 = 16,236.28/x
  3. Step 3: Cross multiply
    21,281.58x = 29,372.08 × 16,236.28
  4. Step 4: Simplify right side
    21,281.58x = 476,893,315.06
  5. Step 5: Solve for x
    x = 476,893,315.06/21,281.58
  6. Step 6: Final answer
    x = 22,408.74

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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.