Home / 38,148.94-52,650.03-21,378.70

Finding the Fourth Proportional to 38,148.94, 52,650.03 and 21,378.70

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Solution

The fourth proportional to 38,148.94, 52,650.03 and 21,378.70 is: 29,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,148.94 : 52,650.03 = 21,378.70 : x
  2. Step 2: Convert to fraction form
    38,148.94/52,650.03 = 21,378.70/x
  3. Step 3: Cross multiply
    38,148.94x = 52,650.03 × 21,378.70
  4. Step 4: Simplify right side
    38,148.94x = 1,125,589,196.36
  5. Step 5: Solve for x
    x = 1,125,589,196.36/38,148.94
  6. Step 6: Final answer
    x = 29,505.12

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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.