Home / 39,429.15-54,411.47-21,524.28

Finding the Fourth Proportional to 39,429.15, 54,411.47 and 21,524.28

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Solution

The fourth proportional to 39,429.15, 54,411.47 and 21,524.28 is: 29,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.15 : 54,411.47 = 21,524.28 : x
  2. Step 2: Convert to fraction form
    39,429.15/54,411.47 = 21,524.28/x
  3. Step 3: Cross multiply
    39,429.15x = 54,411.47 × 21,524.28
  4. Step 4: Simplify right side
    39,429.15x = 1,171,167,484.54
  5. Step 5: Solve for x
    x = 1,171,167,484.54/39,429.15
  6. Step 6: Final answer
    x = 29,703.09

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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.