Home / 30,069.47-45,108.19-11,091.55

Finding the Fourth Proportional to 30,069.47, 45,108.19 and 11,091.55

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Solution

The fourth proportional to 30,069.47, 45,108.19 and 11,091.55 is: 16,638.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,069.47 : 45,108.19 = 11,091.55 : x
  2. Step 2: Convert to fraction form
    30,069.47/45,108.19 = 11,091.55/x
  3. Step 3: Cross multiply
    30,069.47x = 45,108.19 × 11,091.55
  4. Step 4: Simplify right side
    30,069.47x = 500,319,744.79
  5. Step 5: Solve for x
    x = 500,319,744.79/30,069.47
  6. Step 6: Final answer
    x = 16,638.79

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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.