Home / 34,207.36-47,210.40-20,777.68

Finding the Fourth Proportional to 34,207.36, 47,210.40 and 20,777.68

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Solution

The fourth proportional to 34,207.36, 47,210.40 and 20,777.68 is: 28,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,207.36 : 47,210.40 = 20,777.68 : x
  2. Step 2: Convert to fraction form
    34,207.36/47,210.40 = 20,777.68/x
  3. Step 3: Cross multiply
    34,207.36x = 47,210.40 × 20,777.68
  4. Step 4: Simplify right side
    34,207.36x = 980,922,583.87
  5. Step 5: Solve for x
    x = 980,922,583.87/34,207.36
  6. Step 6: Final answer
    x = 28,675.78

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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.