Home / 38,439.84-53,044.56-21,446.58

Finding the Fourth Proportional to 38,439.84, 53,044.56 and 21,446.58

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Solution

The fourth proportional to 38,439.84, 53,044.56 and 21,446.58 is: 29,594.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,439.84 : 53,044.56 = 21,446.58 : x
  2. Step 2: Convert to fraction form
    38,439.84/53,044.56 = 21,446.58/x
  3. Step 3: Cross multiply
    38,439.84x = 53,044.56 × 21,446.58
  4. Step 4: Simplify right side
    38,439.84x = 1,137,624,399.60
  5. Step 5: Solve for x
    x = 1,137,624,399.60/38,439.84
  6. Step 6: Final answer
    x = 29,594.93

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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.