Home / 20,924.02-31,381.17-7,782.58

Finding the Fourth Proportional to 20,924.02, 31,381.17 and 7,782.58

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Solution

The fourth proportional to 20,924.02, 31,381.17 and 7,782.58 is: 11,672.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.02 : 31,381.17 = 7,782.58 : x
  2. Step 2: Convert to fraction form
    20,924.02/31,381.17 = 7,782.58/x
  3. Step 3: Cross multiply
    20,924.02x = 31,381.17 × 7,782.58
  4. Step 4: Simplify right side
    20,924.02x = 244,226,466.02
  5. Step 5: Solve for x
    x = 244,226,466.02/20,924.02
  6. Step 6: Final answer
    x = 11,672.06

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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.