Home / 22,558.98-31,079.52-21,509.22

Finding the Fourth Proportional to 22,558.98, 31,079.52 and 21,509.22

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Solution

The fourth proportional to 22,558.98, 31,079.52 and 21,509.22 is: 29,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,558.98 : 31,079.52 = 21,509.22 : x
  2. Step 2: Convert to fraction form
    22,558.98/31,079.52 = 21,509.22/x
  3. Step 3: Cross multiply
    22,558.98x = 31,079.52 × 21,509.22
  4. Step 4: Simplify right side
    22,558.98x = 668,496,233.17
  5. Step 5: Solve for x
    x = 668,496,233.17/22,558.98
  6. Step 6: Final answer
    x = 29,633.27

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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.