Home / 20,532.41-28,339.13-12,973.94

Finding the Fourth Proportional to 20,532.41, 28,339.13 and 12,973.94

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Solution

The fourth proportional to 20,532.41, 28,339.13 and 12,973.94 is: 17,906.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532.41 : 28,339.13 = 12,973.94 : x
  2. Step 2: Convert to fraction form
    20,532.41/28,339.13 = 12,973.94/x
  3. Step 3: Cross multiply
    20,532.41x = 28,339.13 × 12,973.94
  4. Step 4: Simplify right side
    20,532.41x = 367,670,107.40
  5. Step 5: Solve for x
    x = 367,670,107.40/20,532.41
  6. Step 6: Final answer
    x = 17,906.82

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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.