Home / 21,822.88-30,140.10-14,737

Finding the Fourth Proportional to 21,822.88, 30,140.10 and 14,737

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Solution

The fourth proportional to 21,822.88, 30,140.10 and 14,737 is: 20,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,822.88 : 30,140.10 = 14,737 : x
  2. Step 2: Convert to fraction form
    21,822.88/30,140.10 = 14,737/x
  3. Step 3: Cross multiply
    21,822.88x = 30,140.10 × 14,737
  4. Step 4: Simplify right side
    21,822.88x = 444,174,653.70
  5. Step 5: Solve for x
    x = 444,174,653.70/21,822.88
  6. Step 6: Final answer
    x = 20,353.62

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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.