Home / 47,646.24-71,469.84-12,590.88

Finding the Fourth Proportional to 47,646.24, 71,469.84 and 12,590.88

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Solution

The fourth proportional to 47,646.24, 71,469.84 and 12,590.88 is: 18,886.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,646.24 : 71,469.84 = 12,590.88 : x
  2. Step 2: Convert to fraction form
    47,646.24/71,469.84 = 12,590.88/x
  3. Step 3: Cross multiply
    47,646.24x = 71,469.84 × 12,590.88
  4. Step 4: Simplify right side
    47,646.24x = 899,868,179.06
  5. Step 5: Solve for x
    x = 899,868,179.06/47,646.24
  6. Step 6: Final answer
    x = 18,886.45

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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.