Home / 39,186.32-58,759.90-12,528.84

Finding the Fourth Proportional to 39,186.32, 58,759.90 and 12,528.84

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Solution

The fourth proportional to 39,186.32, 58,759.90 and 12,528.84 is: 18,787.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,186.32 : 58,759.90 = 12,528.84 : x
  2. Step 2: Convert to fraction form
    39,186.32/58,759.90 = 12,528.84/x
  3. Step 3: Cross multiply
    39,186.32x = 58,759.90 × 12,528.84
  4. Step 4: Simplify right side
    39,186.32x = 736,193,385.52
  5. Step 5: Solve for x
    x = 736,193,385.52/39,186.32
  6. Step 6: Final answer
    x = 18,787.00

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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.