Home / 35,447.09-53,175.91-12,649.16

Finding the Fourth Proportional to 35,447.09, 53,175.91 and 12,649.16

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Solution

The fourth proportional to 35,447.09, 53,175.91 and 12,649.16 is: 18,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,447.09 : 53,175.91 = 12,649.16 : x
  2. Step 2: Convert to fraction form
    35,447.09/53,175.91 = 12,649.16/x
  3. Step 3: Cross multiply
    35,447.09x = 53,175.91 × 12,649.16
  4. Step 4: Simplify right side
    35,447.09x = 672,630,625.36
  5. Step 5: Solve for x
    x = 672,630,625.36/35,447.09
  6. Step 6: Final answer
    x = 18,975.63

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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.