Home / 20,080.37-27,723.90-12,913.50

Finding the Fourth Proportional to 20,080.37, 27,723.90 and 12,913.50

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Solution

The fourth proportional to 20,080.37, 27,723.90 and 12,913.50 is: 17,828.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.37 : 27,723.90 = 12,913.50 : x
  2. Step 2: Convert to fraction form
    20,080.37/27,723.90 = 12,913.50/x
  3. Step 3: Cross multiply
    20,080.37x = 27,723.90 × 12,913.50
  4. Step 4: Simplify right side
    20,080.37x = 358,012,582.65
  5. Step 5: Solve for x
    x = 358,012,582.65/20,080.37
  6. Step 6: Final answer
    x = 17,828.98

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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.