Home / 39,521.86-54,537.21-21,615.94

Finding the Fourth Proportional to 39,521.86, 54,537.21 and 21,615.94

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Solution

The fourth proportional to 39,521.86, 54,537.21 and 21,615.94 is: 29,828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,521.86 : 54,537.21 = 21,615.94 : x
  2. Step 2: Convert to fraction form
    39,521.86/54,537.21 = 21,615.94/x
  3. Step 3: Cross multiply
    39,521.86x = 54,537.21 × 21,615.94
  4. Step 4: Simplify right side
    39,521.86x = 1,178,873,059.13
  5. Step 5: Solve for x
    x = 1,178,873,059.13/39,521.86
  6. Step 6: Final answer
    x = 29,828.38

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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.