Home / 30,613.09-45,903.69-10,888.78

Finding the Fourth Proportional to 30,613.09, 45,903.69 and 10,888.78

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Solution

The fourth proportional to 30,613.09, 45,903.69 and 10,888.78 is: 16,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,613.09 : 45,903.69 = 10,888.78 : x
  2. Step 2: Convert to fraction form
    30,613.09/45,903.69 = 10,888.78/x
  3. Step 3: Cross multiply
    30,613.09x = 45,903.69 × 10,888.78
  4. Step 4: Simplify right side
    30,613.09x = 499,835,181.60
  5. Step 5: Solve for x
    x = 499,835,181.60/30,613.09
  6. Step 6: Final answer
    x = 16,327.50

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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.