Home / 19,785.30-29,698.41-13,257.10

Finding the Fourth Proportional to 19,785.30, 29,698.41 and 13,257.10

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Solution

The fourth proportional to 19,785.30, 29,698.41 and 13,257.10 is: 19,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.30 : 29,698.41 = 13,257.10 : x
  2. Step 2: Convert to fraction form
    19,785.30/29,698.41 = 13,257.10/x
  3. Step 3: Cross multiply
    19,785.30x = 29,698.41 × 13,257.10
  4. Step 4: Simplify right side
    19,785.30x = 393,714,878.05
  5. Step 5: Solve for x
    x = 393,714,878.05/19,785.30
  6. Step 6: Final answer
    x = 19,899.37

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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.