Home / 21,362.46-31,971.60-15,246.18

Finding the Fourth Proportional to 21,362.46, 31,971.60 and 15,246.18

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Solution

The fourth proportional to 21,362.46, 31,971.60 and 15,246.18 is: 22,817.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.46 : 31,971.60 = 15,246.18 : x
  2. Step 2: Convert to fraction form
    21,362.46/31,971.60 = 15,246.18/x
  3. Step 3: Cross multiply
    21,362.46x = 31,971.60 × 15,246.18
  4. Step 4: Simplify right side
    21,362.46x = 487,444,768.49
  5. Step 5: Solve for x
    x = 487,444,768.49/21,362.46
  6. Step 6: Final answer
    x = 22,817.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.