Home / 30,406.48-45,609.71-22,139.10

Finding the Fourth Proportional to 30,406.48, 45,609.71 and 22,139.10

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Solution

The fourth proportional to 30,406.48, 45,609.71 and 22,139.10 is: 33,208.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.48 : 45,609.71 = 22,139.10 : x
  2. Step 2: Convert to fraction form
    30,406.48/45,609.71 = 22,139.10/x
  3. Step 3: Cross multiply
    30,406.48x = 45,609.71 × 22,139.10
  4. Step 4: Simplify right side
    30,406.48x = 1,009,757,819.97
  5. Step 5: Solve for x
    x = 1,009,757,819.97/30,406.48
  6. Step 6: Final answer
    x = 33,208.64

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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.