Home / 39,084.45-58,639.23-12,783.21

Finding the Fourth Proportional to 39,084.45, 58,639.23 and 12,783.21

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Solution

The fourth proportional to 39,084.45, 58,639.23 and 12,783.21 is: 19,178.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,084.45 : 58,639.23 = 12,783.21 : x
  2. Step 2: Convert to fraction form
    39,084.45/58,639.23 = 12,783.21/x
  3. Step 3: Cross multiply
    39,084.45x = 58,639.23 × 12,783.21
  4. Step 4: Simplify right side
    39,084.45x = 749,597,591.33
  5. Step 5: Solve for x
    x = 749,597,591.33/39,084.45
  6. Step 6: Final answer
    x = 19,178.92

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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.