Home / 28,023.64-38,672.37-15,276.49

Finding the Fourth Proportional to 28,023.64, 38,672.37 and 15,276.49

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Solution

The fourth proportional to 28,023.64, 38,672.37 and 15,276.49 is: 21,081.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.64 : 38,672.37 = 15,276.49 : x
  2. Step 2: Convert to fraction form
    28,023.64/38,672.37 = 15,276.49/x
  3. Step 3: Cross multiply
    28,023.64x = 38,672.37 × 15,276.49
  4. Step 4: Simplify right side
    28,023.64x = 590,778,073.58
  5. Step 5: Solve for x
    x = 590,778,073.58/28,023.64
  6. Step 6: Final answer
    x = 21,081.42

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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.