Home / 30,516.08-45,770.36-13,858.48

Finding the Fourth Proportional to 30,516.08, 45,770.36 and 13,858.48

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Solution

The fourth proportional to 30,516.08, 45,770.36 and 13,858.48 is: 20,786.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.08 : 45,770.36 = 13,858.48 : x
  2. Step 2: Convert to fraction form
    30,516.08/45,770.36 = 13,858.48/x
  3. Step 3: Cross multiply
    30,516.08x = 45,770.36 × 13,858.48
  4. Step 4: Simplify right side
    30,516.08x = 634,307,618.65
  5. Step 5: Solve for x
    x = 634,307,618.65/30,516.08
  6. Step 6: Final answer
    x = 20,786.01

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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.