Home / 28,126.06-42,200.73-12,322.92

Finding the Fourth Proportional to 28,126.06, 42,200.73 and 12,322.92

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Solution

The fourth proportional to 28,126.06, 42,200.73 and 12,322.92 is: 18,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.06 : 42,200.73 = 12,322.92 : x
  2. Step 2: Convert to fraction form
    28,126.06/42,200.73 = 12,322.92/x
  3. Step 3: Cross multiply
    28,126.06x = 42,200.73 × 12,322.92
  4. Step 4: Simplify right side
    28,126.06x = 520,036,219.73
  5. Step 5: Solve for x
    x = 520,036,219.73/28,126.06
  6. Step 6: Final answer
    x = 18,489.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.