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Finding the Fourth Proportional to 32,756.84, 45,190.43 and 21,406.64

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Solution

The fourth proportional to 32,756.84, 45,190.43 and 21,406.64 is: 29,532.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,756.84 : 45,190.43 = 21,406.64 : x
  2. Step 2: Convert to fraction form
    32,756.84/45,190.43 = 21,406.64/x
  3. Step 3: Cross multiply
    32,756.84x = 45,190.43 × 21,406.64
  4. Step 4: Simplify right side
    32,756.84x = 967,375,266.46
  5. Step 5: Solve for x
    x = 967,375,266.46/32,756.84
  6. Step 6: Final answer
    x = 29,532.01

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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.