Home / 15,928.74-21,985.29-10,330.02

Finding the Fourth Proportional to 15,928.74, 21,985.29 and 10,330.02

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Solution

The fourth proportional to 15,928.74, 21,985.29 and 10,330.02 is: 14,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,928.74 : 21,985.29 = 10,330.02 : x
  2. Step 2: Convert to fraction form
    15,928.74/21,985.29 = 10,330.02/x
  3. Step 3: Cross multiply
    15,928.74x = 21,985.29 × 10,330.02
  4. Step 4: Simplify right side
    15,928.74x = 227,108,485.41
  5. Step 5: Solve for x
    x = 227,108,485.41/15,928.74
  6. Step 6: Final answer
    x = 14,257.78

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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.