Home / 14,220.37-21,301.35-11,431.99

Finding the Fourth Proportional to 14,220.37, 21,301.35 and 11,431.99

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Solution

The fourth proportional to 14,220.37, 21,301.35 and 11,431.99 is: 17,124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.37 : 21,301.35 = 11,431.99 : x
  2. Step 2: Convert to fraction form
    14,220.37/21,301.35 = 11,431.99/x
  3. Step 3: Cross multiply
    14,220.37x = 21,301.35 × 11,431.99
  4. Step 4: Simplify right side
    14,220.37x = 243,516,820.19
  5. Step 5: Solve for x
    x = 243,516,820.19/14,220.37
  6. Step 6: Final answer
    x = 17,124.51

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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.