Home / 28,007.86-38,649.32-17,397.30

Finding the Fourth Proportional to 28,007.86, 38,649.32 and 17,397.30

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Solution

The fourth proportional to 28,007.86, 38,649.32 and 17,397.30 is: 24,007.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.86 : 38,649.32 = 17,397.30 : x
  2. Step 2: Convert to fraction form
    28,007.86/38,649.32 = 17,397.30/x
  3. Step 3: Cross multiply
    28,007.86x = 38,649.32 × 17,397.30
  4. Step 4: Simplify right side
    28,007.86x = 672,393,814.84
  5. Step 5: Solve for x
    x = 672,393,814.84/28,007.86
  6. Step 6: Final answer
    x = 24,007.33

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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.