Home / 47,169.12-70,754.90-13,890.32

Finding the Fourth Proportional to 47,169.12, 70,754.90 and 13,890.32

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Solution

The fourth proportional to 47,169.12, 70,754.90 and 13,890.32 is: 20,835.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,169.12 : 70,754.90 = 13,890.32 : x
  2. Step 2: Convert to fraction form
    47,169.12/70,754.90 = 13,890.32/x
  3. Step 3: Cross multiply
    47,169.12x = 70,754.90 × 13,890.32
  4. Step 4: Simplify right side
    47,169.12x = 982,808,202.57
  5. Step 5: Solve for x
    x = 982,808,202.57/47,169.12
  6. Step 6: Final answer
    x = 20,835.84

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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.