Home / 27,639.36-41,457.60-8,919.05

Finding the Fourth Proportional to 27,639.36, 41,457.60 and 8,919.05

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Solution

The fourth proportional to 27,639.36, 41,457.60 and 8,919.05 is: 13,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,639.36 : 41,457.60 = 8,919.05 : x
  2. Step 2: Convert to fraction form
    27,639.36/41,457.60 = 8,919.05/x
  3. Step 3: Cross multiply
    27,639.36x = 41,457.60 × 8,919.05
  4. Step 4: Simplify right side
    27,639.36x = 369,762,199.99
  5. Step 5: Solve for x
    x = 369,762,199.99/27,639.36
  6. Step 6: Final answer
    x = 13,378.10

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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.