Home / 30,331.81-45,495.46-11,613.52

Finding the Fourth Proportional to 30,331.81, 45,495.46 and 11,613.52

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Solution

The fourth proportional to 30,331.81, 45,495.46 and 11,613.52 is: 17,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.81 : 45,495.46 = 11,613.52 : x
  2. Step 2: Convert to fraction form
    30,331.81/45,495.46 = 11,613.52/x
  3. Step 3: Cross multiply
    30,331.81x = 45,495.46 × 11,613.52
  4. Step 4: Simplify right side
    30,331.81x = 528,362,434.62
  5. Step 5: Solve for x
    x = 528,362,434.62/30,331.81
  6. Step 6: Final answer
    x = 17,419.42

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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.