Home / 28,451.99-39,255.66-17,115.81

Finding the Fourth Proportional to 28,451.99, 39,255.66 and 17,115.81

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Solution

The fourth proportional to 28,451.99, 39,255.66 and 17,115.81 is: 23,614.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.99 : 39,255.66 = 17,115.81 : x
  2. Step 2: Convert to fraction form
    28,451.99/39,255.66 = 17,115.81/x
  3. Step 3: Cross multiply
    28,451.99x = 39,255.66 × 17,115.81
  4. Step 4: Simplify right side
    28,451.99x = 671,892,417.98
  5. Step 5: Solve for x
    x = 671,892,417.98/28,451.99
  6. Step 6: Final answer
    x = 23,614.96

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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.