Home / 22,990.70-31,730.92-19,156.25

Finding the Fourth Proportional to 22,990.70, 31,730.92 and 19,156.25

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Solution

The fourth proportional to 22,990.70, 31,730.92 and 19,156.25 is: 26,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.70 : 31,730.92 = 19,156.25 : x
  2. Step 2: Convert to fraction form
    22,990.70/31,730.92 = 19,156.25/x
  3. Step 3: Cross multiply
    22,990.70x = 31,730.92 × 19,156.25
  4. Step 4: Simplify right side
    22,990.70x = 607,845,436.25
  5. Step 5: Solve for x
    x = 607,845,436.25/22,990.70
  6. Step 6: Final answer
    x = 26,438.75

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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.