Home / 38,629.80-53,308.20-22,715.28

Finding the Fourth Proportional to 38,629.80, 53,308.20 and 22,715.28

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Solution

The fourth proportional to 38,629.80, 53,308.20 and 22,715.28 is: 31,346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,629.80 : 53,308.20 = 22,715.28 : x
  2. Step 2: Convert to fraction form
    38,629.80/53,308.20 = 22,715.28/x
  3. Step 3: Cross multiply
    38,629.80x = 53,308.20 × 22,715.28
  4. Step 4: Simplify right side
    38,629.80x = 1,210,910,689.30
  5. Step 5: Solve for x
    x = 1,210,910,689.30/38,629.80
  6. Step 6: Final answer
    x = 31,346.54

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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.