Home / 43,002.90-64,507.39-11,412.70

Finding the Fourth Proportional to 43,002.90, 64,507.39 and 11,412.70

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Solution

The fourth proportional to 43,002.90, 64,507.39 and 11,412.70 is: 17,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,002.90 : 64,507.39 = 11,412.70 : x
  2. Step 2: Convert to fraction form
    43,002.90/64,507.39 = 11,412.70/x
  3. Step 3: Cross multiply
    43,002.90x = 64,507.39 × 11,412.70
  4. Step 4: Simplify right side
    43,002.90x = 736,203,300.05
  5. Step 5: Solve for x
    x = 736,203,300.05/43,002.90
  6. Step 6: Final answer
    x = 17,119.85

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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.