Home / 39,561.38-54,594.69-21,656.39

Finding the Fourth Proportional to 39,561.38, 54,594.69 and 21,656.39

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Solution

The fourth proportional to 39,561.38, 54,594.69 and 21,656.39 is: 29,885.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,561.38 : 54,594.69 = 21,656.39 : x
  2. Step 2: Convert to fraction form
    39,561.38/54,594.69 = 21,656.39/x
  3. Step 3: Cross multiply
    39,561.38x = 54,594.69 × 21,656.39
  4. Step 4: Simplify right side
    39,561.38x = 1,182,323,898.57
  5. Step 5: Solve for x
    x = 1,182,323,898.57/39,561.38
  6. Step 6: Final answer
    x = 29,885.81

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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.