Home / 28,023.32-38,671.68-15,276.62

Finding the Fourth Proportional to 28,023.32, 38,671.68 and 15,276.62

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Solution

The fourth proportional to 28,023.32, 38,671.68 and 15,276.62 is: 21,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.32 : 38,671.68 = 15,276.62 : x
  2. Step 2: Convert to fraction form
    28,023.32/38,671.68 = 15,276.62/x
  3. Step 3: Cross multiply
    28,023.32x = 38,671.68 × 15,276.62
  4. Step 4: Simplify right side
    28,023.32x = 590,772,560.12
  5. Step 5: Solve for x
    x = 590,772,560.12/28,023.32
  6. Step 6: Final answer
    x = 21,081.46

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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.