Home / 30,084.24-41,477.76-20,636.40

Finding the Fourth Proportional to 30,084.24, 41,477.76 and 20,636.40

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Solution

The fourth proportional to 30,084.24, 41,477.76 and 20,636.40 is: 28,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,084.24 : 41,477.76 = 20,636.40 : x
  2. Step 2: Convert to fraction form
    30,084.24/41,477.76 = 20,636.40/x
  3. Step 3: Cross multiply
    30,084.24x = 41,477.76 × 20,636.40
  4. Step 4: Simplify right side
    30,084.24x = 855,951,646.46
  5. Step 5: Solve for x
    x = 855,951,646.46/30,084.24
  6. Step 6: Final answer
    x = 28,451.83

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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.