Home / 20,498.04-30,699.38-19,787.74

Finding the Fourth Proportional to 20,498.04, 30,699.38 and 19,787.74

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Solution

The fourth proportional to 20,498.04, 30,699.38 and 19,787.74 is: 29,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.04 : 30,699.38 = 19,787.74 : x
  2. Step 2: Convert to fraction form
    20,498.04/30,699.38 = 19,787.74/x
  3. Step 3: Cross multiply
    20,498.04x = 30,699.38 × 19,787.74
  4. Step 4: Simplify right side
    20,498.04x = 607,471,097.17
  5. Step 5: Solve for x
    x = 607,471,097.17/20,498.04
  6. Step 6: Final answer
    x = 29,635.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.