Home / 39,456.81-54,449.64-21,551.94

Finding the Fourth Proportional to 39,456.81, 54,449.64 and 21,551.94

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Solution

The fourth proportional to 39,456.81, 54,449.64 and 21,551.94 is: 29,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,456.81 : 54,449.64 = 21,551.94 : x
  2. Step 2: Convert to fraction form
    39,456.81/54,449.64 = 21,551.94/x
  3. Step 3: Cross multiply
    39,456.81x = 54,449.64 × 21,551.94
  4. Step 4: Simplify right side
    39,456.81x = 1,173,495,374.30
  5. Step 5: Solve for x
    x = 1,173,495,374.30/39,456.81
  6. Step 6: Final answer
    x = 29,741.26

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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.