Home / 43,138.17-64,706.88-11,973.42

Finding the Fourth Proportional to 43,138.17, 64,706.88 and 11,973.42

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Solution

The fourth proportional to 43,138.17, 64,706.88 and 11,973.42 is: 17,960.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138.17 : 64,706.88 = 11,973.42 : x
  2. Step 2: Convert to fraction form
    43,138.17/64,706.88 = 11,973.42/x
  3. Step 3: Cross multiply
    43,138.17x = 64,706.88 × 11,973.42
  4. Step 4: Simplify right side
    43,138.17x = 774,762,651.13
  5. Step 5: Solve for x
    x = 774,762,651.13/43,138.17
  6. Step 6: Final answer
    x = 17,960.03

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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.