Home / 27,149.40-40,727.52-8,430.84

Finding the Fourth Proportional to 27,149.40, 40,727.52 and 8,430.84

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Solution

The fourth proportional to 27,149.40, 40,727.52 and 8,430.84 is: 12,647.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,149.40 : 40,727.52 = 8,430.84 : x
  2. Step 2: Convert to fraction form
    27,149.40/40,727.52 = 8,430.84/x
  3. Step 3: Cross multiply
    27,149.40x = 40,727.52 × 8,430.84
  4. Step 4: Simplify right side
    27,149.40x = 343,367,204.72
  5. Step 5: Solve for x
    x = 343,367,204.72/27,149.40
  6. Step 6: Final answer
    x = 12,647.32

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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.