Home / 28,189.89-42,283.38-9,470.08

Finding the Fourth Proportional to 28,189.89, 42,283.38 and 9,470.08

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Solution

The fourth proportional to 28,189.89, 42,283.38 and 9,470.08 is: 14,204.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.89 : 42,283.38 = 9,470.08 : x
  2. Step 2: Convert to fraction form
    28,189.89/42,283.38 = 9,470.08/x
  3. Step 3: Cross multiply
    28,189.89x = 42,283.38 × 9,470.08
  4. Step 4: Simplify right side
    28,189.89x = 400,427,079.64
  5. Step 5: Solve for x
    x = 400,427,079.64/28,189.89
  6. Step 6: Final answer
    x = 14,204.63

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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.