Home / 20,148.32-27,798.72-12,192.50

Finding the Fourth Proportional to 20,148.32, 27,798.72 and 12,192.50

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Solution

The fourth proportional to 20,148.32, 27,798.72 and 12,192.50 is: 16,822.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.32 : 27,798.72 = 12,192.50 : x
  2. Step 2: Convert to fraction form
    20,148.32/27,798.72 = 12,192.50/x
  3. Step 3: Cross multiply
    20,148.32x = 27,798.72 × 12,192.50
  4. Step 4: Simplify right side
    20,148.32x = 338,935,893.60
  5. Step 5: Solve for x
    x = 338,935,893.60/20,148.32
  6. Step 6: Final answer
    x = 16,822.04

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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.