Home / 21,056.61-31,584.95-5,474.25

Finding the Fourth Proportional to 21,056.61, 31,584.95 and 5,474.25

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Solution

The fourth proportional to 21,056.61, 31,584.95 and 5,474.25 is: 8,211.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.61 : 31,584.95 = 5,474.25 : x
  2. Step 2: Convert to fraction form
    21,056.61/31,584.95 = 5,474.25/x
  3. Step 3: Cross multiply
    21,056.61x = 31,584.95 × 5,474.25
  4. Step 4: Simplify right side
    21,056.61x = 172,903,885.17
  5. Step 5: Solve for x
    x = 172,903,885.17/21,056.61
  6. Step 6: Final answer
    x = 8,211.38

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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.