Home / 30,133.52-45,207.81-21,266.16

Finding the Fourth Proportional to 30,133.52, 45,207.81 and 21,266.16

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Solution

The fourth proportional to 30,133.52, 45,207.81 and 21,266.16 is: 31,904.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,133.52 : 45,207.81 = 21,266.16 : x
  2. Step 2: Convert to fraction form
    30,133.52/45,207.81 = 21,266.16/x
  3. Step 3: Cross multiply
    30,133.52x = 45,207.81 × 21,266.16
  4. Step 4: Simplify right side
    30,133.52x = 961,396,747.54
  5. Step 5: Solve for x
    x = 961,396,747.54/30,133.52
  6. Step 6: Final answer
    x = 31,904.56

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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.