Home / 38,529.15-53,155.58-28,481.72

Finding the Fourth Proportional to 38,529.15, 53,155.58 and 28,481.72

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Solution

The fourth proportional to 38,529.15, 53,155.58 and 28,481.72 is: 39,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,529.15 : 53,155.58 = 28,481.72 : x
  2. Step 2: Convert to fraction form
    38,529.15/53,155.58 = 28,481.72/x
  3. Step 3: Cross multiply
    38,529.15x = 53,155.58 × 28,481.72
  4. Step 4: Simplify right side
    38,529.15x = 1,513,961,937.81
  5. Step 5: Solve for x
    x = 1,513,961,937.81/38,529.15
  6. Step 6: Final answer
    x = 39,293.94

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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.