Home / 34,221.74-47,239.36-20,795.18

Finding the Fourth Proportional to 34,221.74, 47,239.36 and 20,795.18

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Solution

The fourth proportional to 34,221.74, 47,239.36 and 20,795.18 is: 28,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,221.74 : 47,239.36 = 20,795.18 : x
  2. Step 2: Convert to fraction form
    34,221.74/47,239.36 = 20,795.18/x
  3. Step 3: Cross multiply
    34,221.74x = 47,239.36 × 20,795.18
  4. Step 4: Simplify right side
    34,221.74x = 982,350,994.28
  5. Step 5: Solve for x
    x = 982,350,994.28/34,221.74
  6. Step 6: Final answer
    x = 28,705.47

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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.