Home / 38,426.58-53,027.61-21,431.34

Finding the Fourth Proportional to 38,426.58, 53,027.61 and 21,431.34

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Solution

The fourth proportional to 38,426.58, 53,027.61 and 21,431.34 is: 29,574.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,426.58 : 53,027.61 = 21,431.34 : x
  2. Step 2: Convert to fraction form
    38,426.58/53,027.61 = 21,431.34/x
  3. Step 3: Cross multiply
    38,426.58x = 53,027.61 × 21,431.34
  4. Step 4: Simplify right side
    38,426.58x = 1,136,452,739.30
  5. Step 5: Solve for x
    x = 1,136,452,739.30/38,426.58
  6. Step 6: Final answer
    x = 29,574.65

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Double scale
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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.