Home / 43,207.80-64,811.70-18,631.80

Finding the Fourth Proportional to 43,207.80, 64,811.70 and 18,631.80

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Solution

The fourth proportional to 43,207.80, 64,811.70 and 18,631.80 is: 27,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,207.80 : 64,811.70 = 18,631.80 : x
  2. Step 2: Convert to fraction form
    43,207.80/64,811.70 = 18,631.80/x
  3. Step 3: Cross multiply
    43,207.80x = 64,811.70 × 18,631.80
  4. Step 4: Simplify right side
    43,207.80x = 1,207,558,632.06
  5. Step 5: Solve for x
    x = 1,207,558,632.06/43,207.80
  6. Step 6: Final answer
    x = 27,947.70

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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.