Home / 38,495.03-53,122.06-21,498.78

Finding the Fourth Proportional to 38,495.03, 53,122.06 and 21,498.78

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Solution

The fourth proportional to 38,495.03, 53,122.06 and 21,498.78 is: 29,667.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,495.03 : 53,122.06 = 21,498.78 : x
  2. Step 2: Convert to fraction form
    38,495.03/53,122.06 = 21,498.78/x
  3. Step 3: Cross multiply
    38,495.03x = 53,122.06 × 21,498.78
  4. Step 4: Simplify right side
    38,495.03x = 1,142,059,337.65
  5. Step 5: Solve for x
    x = 1,142,059,337.65/38,495.03
  6. Step 6: Final answer
    x = 29,667.71

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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.