Home / 30,234.37-45,327.87-19,117.75

Finding the Fourth Proportional to 30,234.37, 45,327.87 and 19,117.75

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Solution

The fourth proportional to 30,234.37, 45,327.87 and 19,117.75 is: 28,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,234.37 : 45,327.87 = 19,117.75 : x
  2. Step 2: Convert to fraction form
    30,234.37/45,327.87 = 19,117.75/x
  3. Step 3: Cross multiply
    30,234.37x = 45,327.87 × 19,117.75
  4. Step 4: Simplify right side
    30,234.37x = 866,566,886.69
  5. Step 5: Solve for x
    x = 866,566,886.69/30,234.37
  6. Step 6: Final answer
    x = 28,661.65

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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.