Home / 30,922.44-42,657-19,572.72

Finding the Fourth Proportional to 30,922.44, 42,657 and 19,572.72

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Solution

The fourth proportional to 30,922.44, 42,657 and 19,572.72 is: 27,000.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,922.44 : 42,657 = 19,572.72 : x
  2. Step 2: Convert to fraction form
    30,922.44/42,657 = 19,572.72/x
  3. Step 3: Cross multiply
    30,922.44x = 42,657 × 19,572.72
  4. Step 4: Simplify right side
    30,922.44x = 834,913,517.04
  5. Step 5: Solve for x
    x = 834,913,517.04/30,922.44
  6. Step 6: Final answer
    x = 27,000.25

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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.