Home / 22,890.22-31,586.36-13,329.70

Finding the Fourth Proportional to 22,890.22, 31,586.36 and 13,329.70

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Solution

The fourth proportional to 22,890.22, 31,586.36 and 13,329.70 is: 18,393.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,890.22 : 31,586.36 = 13,329.70 : x
  2. Step 2: Convert to fraction form
    22,890.22/31,586.36 = 13,329.70/x
  3. Step 3: Cross multiply
    22,890.22x = 31,586.36 × 13,329.70
  4. Step 4: Simplify right side
    22,890.22x = 421,036,557.28
  5. Step 5: Solve for x
    x = 421,036,557.28/22,890.22
  6. Step 6: Final answer
    x = 18,393.73

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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.