Home / 22,837.40-31,517.88-13,405.76

Finding the Fourth Proportional to 22,837.40, 31,517.88 and 13,405.76

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Solution

The fourth proportional to 22,837.40, 31,517.88 and 13,405.76 is: 18,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,837.40 : 31,517.88 = 13,405.76 : x
  2. Step 2: Convert to fraction form
    22,837.40/31,517.88 = 13,405.76/x
  3. Step 3: Cross multiply
    22,837.40x = 31,517.88 × 13,405.76
  4. Step 4: Simplify right side
    22,837.40x = 422,521,134.99
  5. Step 5: Solve for x
    x = 422,521,134.99/22,837.40
  6. Step 6: Final answer
    x = 18,501.28

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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.