Home / 27,649.40-38,141.60-18,699.93

Finding the Fourth Proportional to 27,649.40, 38,141.60 and 18,699.93

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Solution

The fourth proportional to 27,649.40, 38,141.60 and 18,699.93 is: 25,796.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,649.40 : 38,141.60 = 18,699.93 : x
  2. Step 2: Convert to fraction form
    27,649.40/38,141.60 = 18,699.93/x
  3. Step 3: Cross multiply
    27,649.40x = 38,141.60 × 18,699.93
  4. Step 4: Simplify right side
    27,649.40x = 713,245,156.59
  5. Step 5: Solve for x
    x = 713,245,156.59/27,649.40
  6. Step 6: Final answer
    x = 25,796.05

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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.