Home / 38,330.09-57,431.35-13,356.38

Finding the Fourth Proportional to 38,330.09, 57,431.35 and 13,356.38

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Solution

The fourth proportional to 38,330.09, 57,431.35 and 13,356.38 is: 20,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,330.09 : 57,431.35 = 13,356.38 : x
  2. Step 2: Convert to fraction form
    38,330.09/57,431.35 = 13,356.38/x
  3. Step 3: Cross multiply
    38,330.09x = 57,431.35 × 13,356.38
  4. Step 4: Simplify right side
    38,330.09x = 767,074,696.61
  5. Step 5: Solve for x
    x = 767,074,696.61/38,330.09
  6. Step 6: Final answer
    x = 20,012.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.