Home / 38,425.31-53,026.83-21,429.58

Finding the Fourth Proportional to 38,425.31, 53,026.83 and 21,429.58

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Solution

The fourth proportional to 38,425.31, 53,026.83 and 21,429.58 is: 29,572.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,425.31 : 53,026.83 = 21,429.58 : x
  2. Step 2: Convert to fraction form
    38,425.31/53,026.83 = 21,429.58/x
  3. Step 3: Cross multiply
    38,425.31x = 53,026.83 × 21,429.58
  4. Step 4: Simplify right side
    38,425.31x = 1,136,342,563.06
  5. Step 5: Solve for x
    x = 1,136,342,563.06/38,425.31
  6. Step 6: Final answer
    x = 29,572.76

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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.