Home / 31,667.45-47,420.82-19,009.33

Finding the Fourth Proportional to 31,667.45, 47,420.82 and 19,009.33

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Solution

The fourth proportional to 31,667.45, 47,420.82 and 19,009.33 is: 28,465.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,667.45 : 47,420.82 = 19,009.33 : x
  2. Step 2: Convert to fraction form
    31,667.45/47,420.82 = 19,009.33/x
  3. Step 3: Cross multiply
    31,667.45x = 47,420.82 × 19,009.33
  4. Step 4: Simplify right side
    31,667.45x = 901,438,081.23
  5. Step 5: Solve for x
    x = 901,438,081.23/31,667.45
  6. Step 6: Final answer
    x = 28,465.76

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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.