Home / 28,456.03-39,256.61-17,118.87

Finding the Fourth Proportional to 28,456.03, 39,256.61 and 17,118.87

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Solution

The fourth proportional to 28,456.03, 39,256.61 and 17,118.87 is: 23,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,456.03 : 39,256.61 = 17,118.87 : x
  2. Step 2: Convert to fraction form
    28,456.03/39,256.61 = 17,118.87/x
  3. Step 3: Cross multiply
    28,456.03x = 39,256.61 × 17,118.87
  4. Step 4: Simplify right side
    28,456.03x = 672,028,803.23
  5. Step 5: Solve for x
    x = 672,028,803.23/28,456.03
  6. Step 6: Final answer
    x = 23,616.39

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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.