Home / 30,127.89-41,577.56-18,188.90

Finding the Fourth Proportional to 30,127.89, 41,577.56 and 18,188.90

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Solution

The fourth proportional to 30,127.89, 41,577.56 and 18,188.90 is: 25,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,127.89 : 41,577.56 = 18,188.90 : x
  2. Step 2: Convert to fraction form
    30,127.89/41,577.56 = 18,188.90/x
  3. Step 3: Cross multiply
    30,127.89x = 41,577.56 × 18,188.90
  4. Step 4: Simplify right side
    30,127.89x = 756,249,782.25
  5. Step 5: Solve for x
    x = 756,249,782.25/30,127.89
  6. Step 6: Final answer
    x = 25,101.32

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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.