Home / 28,209.33-42,313.86-12,616.02

Finding the Fourth Proportional to 28,209.33, 42,313.86 and 12,616.02

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Solution

The fourth proportional to 28,209.33, 42,313.86 and 12,616.02 is: 18,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.33 : 42,313.86 = 12,616.02 : x
  2. Step 2: Convert to fraction form
    28,209.33/42,313.86 = 12,616.02/x
  3. Step 3: Cross multiply
    28,209.33x = 42,313.86 × 12,616.02
  4. Step 4: Simplify right side
    28,209.33x = 533,832,504.04
  5. Step 5: Solve for x
    x = 533,832,504.04/28,209.33
  6. Step 6: Final answer
    x = 18,923.97

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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.