Home / 47,687.20-71,530.80-14,412.40

Finding the Fourth Proportional to 47,687.20, 71,530.80 and 14,412.40

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Solution

The fourth proportional to 47,687.20, 71,530.80 and 14,412.40 is: 21,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,687.20 : 71,530.80 = 14,412.40 : x
  2. Step 2: Convert to fraction form
    47,687.20/71,530.80 = 14,412.40/x
  3. Step 3: Cross multiply
    47,687.20x = 71,530.80 × 14,412.40
  4. Step 4: Simplify right side
    47,687.20x = 1,030,930,501.92
  5. Step 5: Solve for x
    x = 1,030,930,501.92/47,687.20
  6. Step 6: Final answer
    x = 21,618.60

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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.