Home / 34,377.12-47,438.64-20,237.76

Finding the Fourth Proportional to 34,377.12, 47,438.64 and 20,237.76

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Solution

The fourth proportional to 34,377.12, 47,438.64 and 20,237.76 is: 27,927.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,377.12 : 47,438.64 = 20,237.76 : x
  2. Step 2: Convert to fraction form
    34,377.12/47,438.64 = 20,237.76/x
  3. Step 3: Cross multiply
    34,377.12x = 47,438.64 × 20,237.76
  4. Step 4: Simplify right side
    34,377.12x = 960,051,811.05
  5. Step 5: Solve for x
    x = 960,051,811.05/34,377.12
  6. Step 6: Final answer
    x = 27,927.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.