Home / 28,423.35-42,610.72-10,905.75

Finding the Fourth Proportional to 28,423.35, 42,610.72 and 10,905.75

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Solution

The fourth proportional to 28,423.35, 42,610.72 and 10,905.75 is: 16,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.35 : 42,610.72 = 10,905.75 : x
  2. Step 2: Convert to fraction form
    28,423.35/42,610.72 = 10,905.75/x
  3. Step 3: Cross multiply
    28,423.35x = 42,610.72 × 10,905.75
  4. Step 4: Simplify right side
    28,423.35x = 464,701,859.64
  5. Step 5: Solve for x
    x = 464,701,859.64/28,423.35
  6. Step 6: Final answer
    x = 16,349.30

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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.