Home / 47,140.89-70,711.31-13,861.23

Finding the Fourth Proportional to 47,140.89, 70,711.31 and 13,861.23

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Solution

The fourth proportional to 47,140.89, 70,711.31 and 13,861.23 is: 20,791.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,140.89 : 70,711.31 = 13,861.23 : x
  2. Step 2: Convert to fraction form
    47,140.89/70,711.31 = 13,861.23/x
  3. Step 3: Cross multiply
    47,140.89x = 70,711.31 × 13,861.23
  4. Step 4: Simplify right side
    47,140.89x = 980,145,731.51
  5. Step 5: Solve for x
    x = 980,145,731.51/47,140.89
  6. Step 6: Final answer
    x = 20,791.84

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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.