Home / 38,372.45-52,953.25-21,378.09

Finding the Fourth Proportional to 38,372.45, 52,953.25 and 21,378.09

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Solution

The fourth proportional to 38,372.45, 52,953.25 and 21,378.09 is: 29,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,372.45 : 52,953.25 = 21,378.09 : x
  2. Step 2: Convert to fraction form
    38,372.45/52,953.25 = 21,378.09/x
  3. Step 3: Cross multiply
    38,372.45x = 52,953.25 × 21,378.09
  4. Step 4: Simplify right side
    38,372.45x = 1,132,039,344.29
  5. Step 5: Solve for x
    x = 1,132,039,344.29/38,372.45
  6. Step 6: Final answer
    x = 29,501.36

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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.