Home / 27,155.19-40,739.16-8,434.26

Finding the Fourth Proportional to 27,155.19, 40,739.16 and 8,434.26

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Solution

The fourth proportional to 27,155.19, 40,739.16 and 8,434.26 is: 12,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.19 : 40,739.16 = 8,434.26 : x
  2. Step 2: Convert to fraction form
    27,155.19/40,739.16 = 8,434.26/x
  3. Step 3: Cross multiply
    27,155.19x = 40,739.16 × 8,434.26
  4. Step 4: Simplify right side
    27,155.19x = 343,604,667.62
  5. Step 5: Solve for x
    x = 343,604,667.62/27,155.19
  6. Step 6: Final answer
    x = 12,653.37

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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.