Home / 21,644.40-32,443.28-10,558.56

Finding the Fourth Proportional to 21,644.40, 32,443.28 and 10,558.56

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Solution

The fourth proportional to 21,644.40, 32,443.28 and 10,558.56 is: 15,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.40 : 32,443.28 = 10,558.56 : x
  2. Step 2: Convert to fraction form
    21,644.40/32,443.28 = 10,558.56/x
  3. Step 3: Cross multiply
    21,644.40x = 32,443.28 × 10,558.56
  4. Step 4: Simplify right side
    21,644.40x = 342,554,318.48
  5. Step 5: Solve for x
    x = 342,554,318.48/21,644.40
  6. Step 6: Final answer
    x = 15,826.46

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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.