Home / 39,342.72-54,293.04-21,437.88

Finding the Fourth Proportional to 39,342.72, 54,293.04 and 21,437.88

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Solution

The fourth proportional to 39,342.72, 54,293.04 and 21,437.88 is: 29,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,342.72 : 54,293.04 = 21,437.88 : x
  2. Step 2: Convert to fraction form
    39,342.72/54,293.04 = 21,437.88/x
  3. Step 3: Cross multiply
    39,342.72x = 54,293.04 × 21,437.88
  4. Step 4: Simplify right side
    39,342.72x = 1,163,927,676.36
  5. Step 5: Solve for x
    x = 1,163,927,676.36/39,342.72
  6. Step 6: Final answer
    x = 29,584.32

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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.