Home / 38,636.92-53,316.36-21,408.13

Finding the Fourth Proportional to 38,636.92, 53,316.36 and 21,408.13

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Solution

The fourth proportional to 38,636.92, 53,316.36 and 21,408.13 is: 29,541.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,636.92 : 53,316.36 = 21,408.13 : x
  2. Step 2: Convert to fraction form
    38,636.92/53,316.36 = 21,408.13/x
  3. Step 3: Cross multiply
    38,636.92x = 53,316.36 × 21,408.13
  4. Step 4: Simplify right side
    38,636.92x = 1,141,403,566.01
  5. Step 5: Solve for x
    x = 1,141,403,566.01/38,636.92
  6. Step 6: Final answer
    x = 29,541.78

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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.