Home / 30,387.96-41,967.72-23,140.35

Finding the Fourth Proportional to 30,387.96, 41,967.72 and 23,140.35

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Solution

The fourth proportional to 30,387.96, 41,967.72 and 23,140.35 is: 31,958.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,387.96 : 41,967.72 = 23,140.35 : x
  2. Step 2: Convert to fraction form
    30,387.96/41,967.72 = 23,140.35/x
  3. Step 3: Cross multiply
    30,387.96x = 41,967.72 × 23,140.35
  4. Step 4: Simplify right side
    30,387.96x = 971,147,729.50
  5. Step 5: Solve for x
    x = 971,147,729.50/30,387.96
  6. Step 6: Final answer
    x = 31,958.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.