Home / 20,763.27-31,126.39-7,612.58

Finding the Fourth Proportional to 20,763.27, 31,126.39 and 7,612.58

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Solution

The fourth proportional to 20,763.27, 31,126.39 and 7,612.58 is: 11,412.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.27 : 31,126.39 = 7,612.58 : x
  2. Step 2: Convert to fraction form
    20,763.27/31,126.39 = 7,612.58/x
  3. Step 3: Cross multiply
    20,763.27x = 31,126.39 × 7,612.58
  4. Step 4: Simplify right side
    20,763.27x = 236,952,192.77
  5. Step 5: Solve for x
    x = 236,952,192.77/20,763.27
  6. Step 6: Final answer
    x = 11,412.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.