Home / 20,330.84-28,059.06-12,373.88

Finding the Fourth Proportional to 20,330.84, 28,059.06 and 12,373.88

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Solution

The fourth proportional to 20,330.84, 28,059.06 and 12,373.88 is: 17,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.84 : 28,059.06 = 12,373.88 : x
  2. Step 2: Convert to fraction form
    20,330.84/28,059.06 = 12,373.88/x
  3. Step 3: Cross multiply
    20,330.84x = 28,059.06 × 12,373.88
  4. Step 4: Simplify right side
    20,330.84x = 347,199,441.35
  5. Step 5: Solve for x
    x = 347,199,441.35/20,330.84
  6. Step 6: Final answer
    x = 17,077.48

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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.