Home / 28,026.74-38,677.34-15,279.94

Finding the Fourth Proportional to 28,026.74, 38,677.34 and 15,279.94

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Solution

The fourth proportional to 28,026.74, 38,677.34 and 15,279.94 is: 21,086.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026.74 : 38,677.34 = 15,279.94 : x
  2. Step 2: Convert to fraction form
    28,026.74/38,677.34 = 15,279.94/x
  3. Step 3: Cross multiply
    28,026.74x = 38,677.34 × 15,279.94
  4. Step 4: Simplify right side
    28,026.74x = 590,987,434.56
  5. Step 5: Solve for x
    x = 590,987,434.56/28,026.74
  6. Step 6: Final answer
    x = 21,086.56

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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.