Home / 30,172.32-45,264.96-9,110.60

Finding the Fourth Proportional to 30,172.32, 45,264.96 and 9,110.60

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Solution

The fourth proportional to 30,172.32, 45,264.96 and 9,110.60 is: 13,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172.32 : 45,264.96 = 9,110.60 : x
  2. Step 2: Convert to fraction form
    30,172.32/45,264.96 = 9,110.60/x
  3. Step 3: Cross multiply
    30,172.32x = 45,264.96 × 9,110.60
  4. Step 4: Simplify right side
    30,172.32x = 412,390,944.58
  5. Step 5: Solve for x
    x = 412,390,944.58/30,172.32
  6. Step 6: Final answer
    x = 13,667.86

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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.