Home / 28,010.10-38,650.44-18,955.26

Finding the Fourth Proportional to 28,010.10, 38,650.44 and 18,955.26

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Solution

The fourth proportional to 28,010.10, 38,650.44 and 18,955.26 is: 26,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.10 : 38,650.44 = 18,955.26 : x
  2. Step 2: Convert to fraction form
    28,010.10/38,650.44 = 18,955.26/x
  3. Step 3: Cross multiply
    28,010.10x = 38,650.44 × 18,955.26
  4. Step 4: Simplify right side
    28,010.10x = 732,629,139.31
  5. Step 5: Solve for x
    x = 732,629,139.31/28,010.10
  6. Step 6: Final answer
    x = 26,155.89

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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.