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Finding the Fourth Proportional to 35,674.40, 53,473.20 and 13,479.20

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Solution

The fourth proportional to 35,674.40, 53,473.20 and 13,479.20 is: 20,204.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,674.40 : 53,473.20 = 13,479.20 : x
  2. Step 2: Convert to fraction form
    35,674.40/53,473.20 = 13,479.20/x
  3. Step 3: Cross multiply
    35,674.40x = 53,473.20 × 13,479.20
  4. Step 4: Simplify right side
    35,674.40x = 720,775,957.44
  5. Step 5: Solve for x
    x = 720,775,957.44/35,674.40
  6. Step 6: Final answer
    x = 20,204.29

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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.