Home / 21,164.22-31,734.18-14,152.28

Finding the Fourth Proportional to 21,164.22, 31,734.18 and 14,152.28

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Solution

The fourth proportional to 21,164.22, 31,734.18 and 14,152.28 is: 21,220.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.22 : 31,734.18 = 14,152.28 : x
  2. Step 2: Convert to fraction form
    21,164.22/31,734.18 = 14,152.28/x
  3. Step 3: Cross multiply
    21,164.22x = 31,734.18 × 14,152.28
  4. Step 4: Simplify right side
    21,164.22x = 449,110,842.26
  5. Step 5: Solve for x
    x = 449,110,842.26/21,164.22
  6. Step 6: Final answer
    x = 21,220.29

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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.