Home / 23,311.80-34,967.70-12,814.20

Finding the Fourth Proportional to 23,311.80, 34,967.70 and 12,814.20

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Solution

The fourth proportional to 23,311.80, 34,967.70 and 12,814.20 is: 19,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,311.80 : 34,967.70 = 12,814.20 : x
  2. Step 2: Convert to fraction form
    23,311.80/34,967.70 = 12,814.20/x
  3. Step 3: Cross multiply
    23,311.80x = 34,967.70 × 12,814.20
  4. Step 4: Simplify right side
    23,311.80x = 448,083,101.34
  5. Step 5: Solve for x
    x = 448,083,101.34/23,311.80
  6. Step 6: Final answer
    x = 19,221.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.