Home / 28,190.89-42,284.88-9,471.08

Finding the Fourth Proportional to 28,190.89, 42,284.88 and 9,471.08

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Solution

The fourth proportional to 28,190.89, 42,284.88 and 9,471.08 is: 14,206.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.89 : 42,284.88 = 9,471.08 : x
  2. Step 2: Convert to fraction form
    28,190.89/42,284.88 = 9,471.08/x
  3. Step 3: Cross multiply
    28,190.89x = 42,284.88 × 9,471.08
  4. Step 4: Simplify right side
    28,190.89x = 400,483,481.27
  5. Step 5: Solve for x
    x = 400,483,481.27/28,190.89
  6. Step 6: Final answer
    x = 14,206.13

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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.