Home / 39,587.52-54,630.80-21,682.58

Finding the Fourth Proportional to 39,587.52, 54,630.80 and 21,682.58

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Solution

The fourth proportional to 39,587.52, 54,630.80 and 21,682.58 is: 29,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,587.52 : 54,630.80 = 21,682.58 : x
  2. Step 2: Convert to fraction form
    39,587.52/54,630.80 = 21,682.58/x
  3. Step 3: Cross multiply
    39,587.52x = 54,630.80 × 21,682.58
  4. Step 4: Simplify right side
    39,587.52x = 1,184,536,691.46
  5. Step 5: Solve for x
    x = 1,184,536,691.46/39,587.52
  6. Step 6: Final answer
    x = 29,921.97

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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.