Home / 28,045.58-38,699.37-15,945.80

Finding the Fourth Proportional to 28,045.58, 38,699.37 and 15,945.80

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Solution

The fourth proportional to 28,045.58, 38,699.37 and 15,945.80 is: 22,003.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.58 : 38,699.37 = 15,945.80 : x
  2. Step 2: Convert to fraction form
    28,045.58/38,699.37 = 15,945.80/x
  3. Step 3: Cross multiply
    28,045.58x = 38,699.37 × 15,945.80
  4. Step 4: Simplify right side
    28,045.58x = 617,092,220.65
  5. Step 5: Solve for x
    x = 617,092,220.65/28,045.58
  6. Step 6: Final answer
    x = 22,003.19

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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.