Home / 39,587.74-54,631.26-21,682.69

Finding the Fourth Proportional to 39,587.74, 54,631.26 and 21,682.69

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Solution

The fourth proportional to 39,587.74, 54,631.26 and 21,682.69 is: 29,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,587.74 : 54,631.26 = 21,682.69 : x
  2. Step 2: Convert to fraction form
    39,587.74/54,631.26 = 21,682.69/x
  3. Step 3: Cross multiply
    39,587.74x = 54,631.26 × 21,682.69
  4. Step 4: Simplify right side
    39,587.74x = 1,184,552,538.31
  5. Step 5: Solve for x
    x = 1,184,552,538.31/39,587.74
  6. Step 6: Final answer
    x = 29,922.21

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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.