Home / 38,685.71-58,037.28-13,725.72

Finding the Fourth Proportional to 38,685.71, 58,037.28 and 13,725.72

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Solution

The fourth proportional to 38,685.71, 58,037.28 and 13,725.72 is: 20,591.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,685.71 : 58,037.28 = 13,725.72 : x
  2. Step 2: Convert to fraction form
    38,685.71/58,037.28 = 13,725.72/x
  3. Step 3: Cross multiply
    38,685.71x = 58,037.28 × 13,725.72
  4. Step 4: Simplify right side
    38,685.71x = 796,603,641.60
  5. Step 5: Solve for x
    x = 796,603,641.60/38,685.71
  6. Step 6: Final answer
    x = 20,591.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.