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Finding the Fourth Proportional to 21,366.40, 32,043.84 and 14,483.20

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Solution

The fourth proportional to 21,366.40, 32,043.84 and 14,483.20 is: 21,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366.40 : 32,043.84 = 14,483.20 : x
  2. Step 2: Convert to fraction form
    21,366.40/32,043.84 = 14,483.20/x
  3. Step 3: Cross multiply
    21,366.40x = 32,043.84 × 14,483.20
  4. Step 4: Simplify right side
    21,366.40x = 464,097,343.49
  5. Step 5: Solve for x
    x = 464,097,343.49/21,366.40
  6. Step 6: Final answer
    x = 21,720.90

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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.