Home / 21,529.44-29,674.08-16,423.20

Finding the Fourth Proportional to 21,529.44, 29,674.08 and 16,423.20

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Solution

The fourth proportional to 21,529.44, 29,674.08 and 16,423.20 is: 22,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,529.44 : 29,674.08 = 16,423.20 : x
  2. Step 2: Convert to fraction form
    21,529.44/29,674.08 = 16,423.20/x
  3. Step 3: Cross multiply
    21,529.44x = 29,674.08 × 16,423.20
  4. Step 4: Simplify right side
    21,529.44x = 487,343,350.66
  5. Step 5: Solve for x
    x = 487,343,350.66/21,529.44
  6. Step 6: Final answer
    x = 22,636.14

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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.