Home / 20,526.21-28,326.49-12,026.30

Finding the Fourth Proportional to 20,526.21, 28,326.49 and 12,026.30

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Solution

The fourth proportional to 20,526.21, 28,326.49 and 12,026.30 is: 16,596.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.21 : 28,326.49 = 12,026.30 : x
  2. Step 2: Convert to fraction form
    20,526.21/28,326.49 = 12,026.30/x
  3. Step 3: Cross multiply
    20,526.21x = 28,326.49 × 12,026.30
  4. Step 4: Simplify right side
    20,526.21x = 340,662,735.74
  5. Step 5: Solve for x
    x = 340,662,735.74/20,526.21
  6. Step 6: Final answer
    x = 16,596.48

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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.