Home / 58,454.41-87,628.99-21,005.68

Finding the Fourth Proportional to 58,454.41, 87,628.99 and 21,005.68

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Solution

The fourth proportional to 58,454.41, 87,628.99 and 21,005.68 is: 31,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,454.41 : 87,628.99 = 21,005.68 : x
  2. Step 2: Convert to fraction form
    58,454.41/87,628.99 = 21,005.68/x
  3. Step 3: Cross multiply
    58,454.41x = 87,628.99 × 21,005.68
  4. Step 4: Simplify right side
    58,454.41x = 1,840,706,454.77
  5. Step 5: Solve for x
    x = 1,840,706,454.77/58,454.41
  6. Step 6: Final answer
    x = 31,489.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.