Home / 39,465.45-54,460.62-21,559.59

Finding the Fourth Proportional to 39,465.45, 54,460.62 and 21,559.59

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Solution

The fourth proportional to 39,465.45, 54,460.62 and 21,559.59 is: 29,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,465.45 : 54,460.62 = 21,559.59 : x
  2. Step 2: Convert to fraction form
    39,465.45/54,460.62 = 21,559.59/x
  3. Step 3: Cross multiply
    39,465.45x = 54,460.62 × 21,559.59
  4. Step 4: Simplify right side
    39,465.45x = 1,174,148,638.35
  5. Step 5: Solve for x
    x = 1,174,148,638.35/39,465.45
  6. Step 6: Final answer
    x = 29,751.30

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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.