Home / 28,153.48-42,241.50-10,628.28

Finding the Fourth Proportional to 28,153.48, 42,241.50 and 10,628.28

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Solution

The fourth proportional to 28,153.48, 42,241.50 and 10,628.28 is: 15,946.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,153.48 : 42,241.50 = 10,628.28 : x
  2. Step 2: Convert to fraction form
    28,153.48/42,241.50 = 10,628.28/x
  3. Step 3: Cross multiply
    28,153.48x = 42,241.50 × 10,628.28
  4. Step 4: Simplify right side
    28,153.48x = 448,954,489.62
  5. Step 5: Solve for x
    x = 448,954,489.62/28,153.48
  6. Step 6: Final answer
    x = 15,946.68

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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.