Home / 21,701.04-29,942.04-12,269.40

Finding the Fourth Proportional to 21,701.04, 29,942.04 and 12,269.40

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Solution

The fourth proportional to 21,701.04, 29,942.04 and 12,269.40 is: 16,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.04 : 29,942.04 = 12,269.40 : x
  2. Step 2: Convert to fraction form
    21,701.04/29,942.04 = 12,269.40/x
  3. Step 3: Cross multiply
    21,701.04x = 29,942.04 × 12,269.40
  4. Step 4: Simplify right side
    21,701.04x = 367,370,865.58
  5. Step 5: Solve for x
    x = 367,370,865.58/21,701.04
  6. Step 6: Final answer
    x = 16,928.72

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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.