Home / 20,410.52-28,145.79-19,219.95

Finding the Fourth Proportional to 20,410.52, 28,145.79 and 19,219.95

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Solution

The fourth proportional to 20,410.52, 28,145.79 and 19,219.95 is: 26,504.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.52 : 28,145.79 = 19,219.95 : x
  2. Step 2: Convert to fraction form
    20,410.52/28,145.79 = 19,219.95/x
  3. Step 3: Cross multiply
    20,410.52x = 28,145.79 × 19,219.95
  4. Step 4: Simplify right side
    20,410.52x = 540,960,676.51
  5. Step 5: Solve for x
    x = 540,960,676.51/20,410.52
  6. Step 6: Final answer
    x = 26,504.02

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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.