Home / 39,155-54,033.96-22,388.36

Finding the Fourth Proportional to 39,155, 54,033.96 and 22,388.36

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Solution

The fourth proportional to 39,155, 54,033.96 and 22,388.36 is: 30,895.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155 : 54,033.96 = 22,388.36 : x
  2. Step 2: Convert to fraction form
    39,155/54,033.96 = 22,388.36/x
  3. Step 3: Cross multiply
    39,155x = 54,033.96 × 22,388.36
  4. Step 4: Simplify right side
    39,155x = 1,209,731,748.71
  5. Step 5: Solve for x
    x = 1,209,731,748.71/39,155
  6. Step 6: Final answer
    x = 30,895.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.