Home / 34,685.66-47,861.09-20,340.06

Finding the Fourth Proportional to 34,685.66, 47,861.09 and 20,340.06

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Solution

The fourth proportional to 34,685.66, 47,861.09 and 20,340.06 is: 28,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,685.66 : 47,861.09 = 20,340.06 : x
  2. Step 2: Convert to fraction form
    34,685.66/47,861.09 = 20,340.06/x
  3. Step 3: Cross multiply
    34,685.66x = 47,861.09 × 20,340.06
  4. Step 4: Simplify right side
    34,685.66x = 973,497,340.57
  5. Step 5: Solve for x
    x = 973,497,340.57/34,685.66
  6. Step 6: Final answer
    x = 28,066.28

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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.