Home / 47,128.23-70,690.62-11,589.68

Finding the Fourth Proportional to 47,128.23, 70,690.62 and 11,589.68

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Solution

The fourth proportional to 47,128.23, 70,690.62 and 11,589.68 is: 17,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.23 : 70,690.62 = 11,589.68 : x
  2. Step 2: Convert to fraction form
    47,128.23/70,690.62 = 11,589.68/x
  3. Step 3: Cross multiply
    47,128.23x = 70,690.62 × 11,589.68
  4. Step 4: Simplify right side
    47,128.23x = 819,281,884.99
  5. Step 5: Solve for x
    x = 819,281,884.99/47,128.23
  6. Step 6: Final answer
    x = 17,384.10

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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.