Home / 34,333.32-47,387.34-20,908.92

Finding the Fourth Proportional to 34,333.32, 47,387.34 and 20,908.92

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Solution

The fourth proportional to 34,333.32, 47,387.34 and 20,908.92 is: 28,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,333.32 : 47,387.34 = 20,908.92 : x
  2. Step 2: Convert to fraction form
    34,333.32/47,387.34 = 20,908.92/x
  3. Step 3: Cross multiply
    34,333.32x = 47,387.34 × 20,908.92
  4. Step 4: Simplify right side
    34,333.32x = 990,818,101.07
  5. Step 5: Solve for x
    x = 990,818,101.07/34,333.32
  6. Step 6: Final answer
    x = 28,858.79

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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.