Home / 30,685.12-46,022.54-8,500.75

Finding the Fourth Proportional to 30,685.12, 46,022.54 and 8,500.75

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Solution

The fourth proportional to 30,685.12, 46,022.54 and 8,500.75 is: 12,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,685.12 : 46,022.54 = 8,500.75 : x
  2. Step 2: Convert to fraction form
    30,685.12/46,022.54 = 8,500.75/x
  3. Step 3: Cross multiply
    30,685.12x = 46,022.54 × 8,500.75
  4. Step 4: Simplify right side
    30,685.12x = 391,225,949.34
  5. Step 5: Solve for x
    x = 391,225,949.34/30,685.12
  6. Step 6: Final answer
    x = 12,749.70

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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.