Home / 28,055.57-42,086.99-10,286.19

Finding the Fourth Proportional to 28,055.57, 42,086.99 and 10,286.19

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Solution

The fourth proportional to 28,055.57, 42,086.99 and 10,286.19 is: 15,430.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.57 : 42,086.99 = 10,286.19 : x
  2. Step 2: Convert to fraction form
    28,055.57/42,086.99 = 10,286.19/x
  3. Step 3: Cross multiply
    28,055.57x = 42,086.99 × 10,286.19
  4. Step 4: Simplify right side
    28,055.57x = 432,914,801.38
  5. Step 5: Solve for x
    x = 432,914,801.38/28,055.57
  6. Step 6: Final answer
    x = 15,430.62

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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.