Home / 38,189.37-52,699.91-21,421.29

Finding the Fourth Proportional to 38,189.37, 52,699.91 and 21,421.29

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Solution

The fourth proportional to 38,189.37, 52,699.91 and 21,421.29 is: 29,560.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,189.37 : 52,699.91 = 21,421.29 : x
  2. Step 2: Convert to fraction form
    38,189.37/52,699.91 = 21,421.29/x
  3. Step 3: Cross multiply
    38,189.37x = 52,699.91 × 21,421.29
  4. Step 4: Simplify right side
    38,189.37x = 1,128,899,947.98
  5. Step 5: Solve for x
    x = 1,128,899,947.98/38,189.37
  6. Step 6: Final answer
    x = 29,560.58

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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.