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Finding the Fourth Proportional to 24,412.40, 36,640.20 and 20,913.20

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Solution

The fourth proportional to 24,412.40, 36,640.20 and 20,913.20 is: 31,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,412.40 : 36,640.20 = 20,913.20 : x
  2. Step 2: Convert to fraction form
    24,412.40/36,640.20 = 20,913.20/x
  3. Step 3: Cross multiply
    24,412.40x = 36,640.20 × 20,913.20
  4. Step 4: Simplify right side
    24,412.40x = 766,263,830.64
  5. Step 5: Solve for x
    x = 766,263,830.64/24,412.40
  6. Step 6: Final answer
    x = 31,388.30

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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.