Home / 39,518.98-54,537.26-21,615.04

Finding the Fourth Proportional to 39,518.98, 54,537.26 and 21,615.04

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Solution

The fourth proportional to 39,518.98, 54,537.26 and 21,615.04 is: 29,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,518.98 : 54,537.26 = 21,615.04 : x
  2. Step 2: Convert to fraction form
    39,518.98/54,537.26 = 21,615.04/x
  3. Step 3: Cross multiply
    39,518.98x = 54,537.26 × 21,615.04
  4. Step 4: Simplify right side
    39,518.98x = 1,178,825,056.39
  5. Step 5: Solve for x
    x = 1,178,825,056.39/39,518.98
  6. Step 6: Final answer
    x = 29,829.34

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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.