Home / 20,460.77-28,251.75-15,976.74

Finding the Fourth Proportional to 20,460.77, 28,251.75 and 15,976.74

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Solution

The fourth proportional to 20,460.77, 28,251.75 and 15,976.74 is: 22,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.77 : 28,251.75 = 15,976.74 : x
  2. Step 2: Convert to fraction form
    20,460.77/28,251.75 = 15,976.74/x
  3. Step 3: Cross multiply
    20,460.77x = 28,251.75 × 15,976.74
  4. Step 4: Simplify right side
    20,460.77x = 451,370,864.30
  5. Step 5: Solve for x
    x = 451,370,864.30/20,460.77
  6. Step 6: Final answer
    x = 22,060.31

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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.