Home / 38,436.42-53,022.08-31,274.34

Finding the Fourth Proportional to 38,436.42, 53,022.08 and 31,274.34

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Solution

The fourth proportional to 38,436.42, 53,022.08 and 31,274.34 is: 43,142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,436.42 : 53,022.08 = 31,274.34 : x
  2. Step 2: Convert to fraction form
    38,436.42/53,022.08 = 31,274.34/x
  3. Step 3: Cross multiply
    38,436.42x = 53,022.08 × 31,274.34
  4. Step 4: Simplify right side
    38,436.42x = 1,658,230,557.43
  5. Step 5: Solve for x
    x = 1,658,230,557.43/38,436.42
  6. Step 6: Final answer
    x = 43,142.17

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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.