Home / 21,984.12-30,337.98-12,048.12

Finding the Fourth Proportional to 21,984.12, 30,337.98 and 12,048.12

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Solution

The fourth proportional to 21,984.12, 30,337.98 and 12,048.12 is: 16,626.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.12 : 30,337.98 = 12,048.12 : x
  2. Step 2: Convert to fraction form
    21,984.12/30,337.98 = 12,048.12/x
  3. Step 3: Cross multiply
    21,984.12x = 30,337.98 × 12,048.12
  4. Step 4: Simplify right side
    21,984.12x = 365,515,623.60
  5. Step 5: Solve for x
    x = 365,515,623.60/21,984.12
  6. Step 6: Final answer
    x = 16,626.35

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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.