Home / 19,903.33-27,451.05-12,345.43

Finding the Fourth Proportional to 19,903.33, 27,451.05 and 12,345.43

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Solution

The fourth proportional to 19,903.33, 27,451.05 and 12,345.43 is: 17,027.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.33 : 27,451.05 = 12,345.43 : x
  2. Step 2: Convert to fraction form
    19,903.33/27,451.05 = 12,345.43/x
  3. Step 3: Cross multiply
    19,903.33x = 27,451.05 × 12,345.43
  4. Step 4: Simplify right side
    19,903.33x = 338,895,016.20
  5. Step 5: Solve for x
    x = 338,895,016.20/19,903.33
  6. Step 6: Final answer
    x = 17,027.05

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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.