Home / 28,457.09-39,271.73-16,519.71

Finding the Fourth Proportional to 28,457.09, 39,271.73 and 16,519.71

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Solution

The fourth proportional to 28,457.09, 39,271.73 and 16,519.71 is: 22,797.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,457.09 : 39,271.73 = 16,519.71 : x
  2. Step 2: Convert to fraction form
    28,457.09/39,271.73 = 16,519.71/x
  3. Step 3: Cross multiply
    28,457.09x = 39,271.73 × 16,519.71
  4. Step 4: Simplify right side
    28,457.09x = 648,757,508.20
  5. Step 5: Solve for x
    x = 648,757,508.20/28,457.09
  6. Step 6: Final answer
    x = 22,797.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.