Home / 38,418.66-53,011.32-21,419.22

Finding the Fourth Proportional to 38,418.66, 53,011.32 and 21,419.22

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Solution

The fourth proportional to 38,418.66, 53,011.32 and 21,419.22 is: 29,554.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,418.66 : 53,011.32 = 21,419.22 : x
  2. Step 2: Convert to fraction form
    38,418.66/53,011.32 = 21,419.22/x
  3. Step 3: Cross multiply
    38,418.66x = 53,011.32 × 21,419.22
  4. Step 4: Simplify right side
    38,418.66x = 1,135,461,125.57
  5. Step 5: Solve for x
    x = 1,135,461,125.57/38,418.66
  6. Step 6: Final answer
    x = 29,554.94

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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.