Home / 38,969.70-53,777.89-30,480.49

Finding the Fourth Proportional to 38,969.70, 53,777.89 and 30,480.49

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Solution

The fourth proportional to 38,969.70, 53,777.89 and 30,480.49 is: 42,062.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,969.70 : 53,777.89 = 30,480.49 : x
  2. Step 2: Convert to fraction form
    38,969.70/53,777.89 = 30,480.49/x
  3. Step 3: Cross multiply
    38,969.70x = 53,777.89 × 30,480.49
  4. Step 4: Simplify right side
    38,969.70x = 1,639,176,438.37
  5. Step 5: Solve for x
    x = 1,639,176,438.37/38,969.70
  6. Step 6: Final answer
    x = 42,062.84

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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.