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Finding the Fourth Proportional to 35,444.40, 53,163.60 and 10,820.40

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Solution

The fourth proportional to 35,444.40, 53,163.60 and 10,820.40 is: 16,229.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,444.40 : 53,163.60 = 10,820.40 : x
  2. Step 2: Convert to fraction form
    35,444.40/53,163.60 = 10,820.40/x
  3. Step 3: Cross multiply
    35,444.40x = 53,163.60 × 10,820.40
  4. Step 4: Simplify right side
    35,444.40x = 575,251,417.44
  5. Step 5: Solve for x
    x = 575,251,417.44/35,444.40
  6. Step 6: Final answer
    x = 16,229.68

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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.