Home / 19,305.40-28,948.82-8,206.07

Finding the Fourth Proportional to 19,305.40, 28,948.82 and 8,206.07

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Solution

The fourth proportional to 19,305.40, 28,948.82 and 8,206.07 is: 12,305.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.40 : 28,948.82 = 8,206.07 : x
  2. Step 2: Convert to fraction form
    19,305.40/28,948.82 = 8,206.07/x
  3. Step 3: Cross multiply
    19,305.40x = 28,948.82 × 8,206.07
  4. Step 4: Simplify right side
    19,305.40x = 237,556,043.34
  5. Step 5: Solve for x
    x = 237,556,043.34/19,305.40
  6. Step 6: Final answer
    x = 12,305.16

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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.