Home / 20,993.46-28,970.10-12,034.68

Finding the Fourth Proportional to 20,993.46, 28,970.10 and 12,034.68

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Solution

The fourth proportional to 20,993.46, 28,970.10 and 12,034.68 is: 16,607.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993.46 : 28,970.10 = 12,034.68 : x
  2. Step 2: Convert to fraction form
    20,993.46/28,970.10 = 12,034.68/x
  3. Step 3: Cross multiply
    20,993.46x = 28,970.10 × 12,034.68
  4. Step 4: Simplify right side
    20,993.46x = 348,645,883.07
  5. Step 5: Solve for x
    x = 348,645,883.07/20,993.46
  6. Step 6: Final answer
    x = 16,607.36

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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.