Home / 28,126.15-42,200.87-12,323.02

Finding the Fourth Proportional to 28,126.15, 42,200.87 and 12,323.02

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Solution

The fourth proportional to 28,126.15, 42,200.87 and 12,323.02 is: 18,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.15 : 42,200.87 = 12,323.02 : x
  2. Step 2: Convert to fraction form
    28,126.15/42,200.87 = 12,323.02/x
  3. Step 3: Cross multiply
    28,126.15x = 42,200.87 × 12,323.02
  4. Step 4: Simplify right side
    28,126.15x = 520,042,165.03
  5. Step 5: Solve for x
    x = 520,042,165.03/28,126.15
  6. Step 6: Final answer
    x = 18,489.63

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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.