Home / 47,476.40-71,209.20-12,419.60

Finding the Fourth Proportional to 47,476.40, 71,209.20 and 12,419.60

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Solution

The fourth proportional to 47,476.40, 71,209.20 and 12,419.60 is: 18,627.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,476.40 : 71,209.20 = 12,419.60 : x
  2. Step 2: Convert to fraction form
    47,476.40/71,209.20 = 12,419.60/x
  3. Step 3: Cross multiply
    47,476.40x = 71,209.20 × 12,419.60
  4. Step 4: Simplify right side
    47,476.40x = 884,389,780.32
  5. Step 5: Solve for x
    x = 884,389,780.32/47,476.40
  6. Step 6: Final answer
    x = 18,627.99

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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.