Home / 20,992.37-28,973.57-12,045.92

Finding the Fourth Proportional to 20,992.37, 28,973.57 and 12,045.92

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Solution

The fourth proportional to 20,992.37, 28,973.57 and 12,045.92 is: 16,625.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,992.37 : 28,973.57 = 12,045.92 : x
  2. Step 2: Convert to fraction form
    20,992.37/28,973.57 = 12,045.92/x
  3. Step 3: Cross multiply
    20,992.37x = 28,973.57 × 12,045.92
  4. Step 4: Simplify right side
    20,992.37x = 349,013,101.24
  5. Step 5: Solve for x
    x = 349,013,101.24/20,992.37
  6. Step 6: Final answer
    x = 16,625.72

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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.