Home / 22,611.33-31,202.55-12,538.98

Finding the Fourth Proportional to 22,611.33, 31,202.55 and 12,538.98

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Solution

The fourth proportional to 22,611.33, 31,202.55 and 12,538.98 is: 17,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.33 : 31,202.55 = 12,538.98 : x
  2. Step 2: Convert to fraction form
    22,611.33/31,202.55 = 12,538.98/x
  3. Step 3: Cross multiply
    22,611.33x = 31,202.55 × 12,538.98
  4. Step 4: Simplify right side
    22,611.33x = 391,248,150.40
  5. Step 5: Solve for x
    x = 391,248,150.40/22,611.33
  6. Step 6: Final answer
    x = 17,303.19

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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.