Home / 30,126.34-45,188.80-10,403.04

Finding the Fourth Proportional to 30,126.34, 45,188.80 and 10,403.04

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Solution

The fourth proportional to 30,126.34, 45,188.80 and 10,403.04 is: 15,604.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,126.34 : 45,188.80 = 10,403.04 : x
  2. Step 2: Convert to fraction form
    30,126.34/45,188.80 = 10,403.04/x
  3. Step 3: Cross multiply
    30,126.34x = 45,188.80 × 10,403.04
  4. Step 4: Simplify right side
    30,126.34x = 470,100,893.95
  5. Step 5: Solve for x
    x = 470,100,893.95/30,126.34
  6. Step 6: Final answer
    x = 15,604.31

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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.