Home / 20,599.26-28,440.63-12,218.46

Finding the Fourth Proportional to 20,599.26, 28,440.63 and 12,218.46

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Solution

The fourth proportional to 20,599.26, 28,440.63 and 12,218.46 is: 16,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.26 : 28,440.63 = 12,218.46 : x
  2. Step 2: Convert to fraction form
    20,599.26/28,440.63 = 12,218.46/x
  3. Step 3: Cross multiply
    20,599.26x = 28,440.63 × 12,218.46
  4. Step 4: Simplify right side
    20,599.26x = 347,500,700.03
  5. Step 5: Solve for x
    x = 347,500,700.03/20,599.26
  6. Step 6: Final answer
    x = 16,869.57

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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.