Home / 44,292.88-66,439.56-13,128.40

Finding the Fourth Proportional to 44,292.88, 66,439.56 and 13,128.40

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Solution

The fourth proportional to 44,292.88, 66,439.56 and 13,128.40 is: 19,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,292.88 : 66,439.56 = 13,128.40 : x
  2. Step 2: Convert to fraction form
    44,292.88/66,439.56 = 13,128.40/x
  3. Step 3: Cross multiply
    44,292.88x = 66,439.56 × 13,128.40
  4. Step 4: Simplify right side
    44,292.88x = 872,245,119.50
  5. Step 5: Solve for x
    x = 872,245,119.50/44,292.88
  6. Step 6: Final answer
    x = 19,692.67

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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.