Home / 20,437.72-30,670.53-7,110.59

Finding the Fourth Proportional to 20,437.72, 30,670.53 and 7,110.59

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Solution

The fourth proportional to 20,437.72, 30,670.53 and 7,110.59 is: 10,670.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.72 : 30,670.53 = 7,110.59 : x
  2. Step 2: Convert to fraction form
    20,437.72/30,670.53 = 7,110.59/x
  3. Step 3: Cross multiply
    20,437.72x = 30,670.53 × 7,110.59
  4. Step 4: Simplify right side
    20,437.72x = 218,085,423.89
  5. Step 5: Solve for x
    x = 218,085,423.89/20,437.72
  6. Step 6: Final answer
    x = 10,670.73

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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.