Home / 22,779.28-31,435.44-12,707.44

Finding the Fourth Proportional to 22,779.28, 31,435.44 and 12,707.44

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Solution

The fourth proportional to 22,779.28, 31,435.44 and 12,707.44 is: 17,536.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.28 : 31,435.44 = 12,707.44 : x
  2. Step 2: Convert to fraction form
    22,779.28/31,435.44 = 12,707.44/x
  3. Step 3: Cross multiply
    22,779.28x = 31,435.44 × 12,707.44
  4. Step 4: Simplify right side
    22,779.28x = 399,463,967.67
  5. Step 5: Solve for x
    x = 399,463,967.67/22,779.28
  6. Step 6: Final answer
    x = 17,536.29

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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.