Home / 28,265.88-42,398.80-11,621.46

Finding the Fourth Proportional to 28,265.88, 42,398.80 and 11,621.46

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Solution

The fourth proportional to 28,265.88, 42,398.80 and 11,621.46 is: 17,432.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.88 : 42,398.80 = 11,621.46 : x
  2. Step 2: Convert to fraction form
    28,265.88/42,398.80 = 11,621.46/x
  3. Step 3: Cross multiply
    28,265.88x = 42,398.80 × 11,621.46
  4. Step 4: Simplify right side
    28,265.88x = 492,735,958.25
  5. Step 5: Solve for x
    x = 492,735,958.25/28,265.88
  6. Step 6: Final answer
    x = 17,432.18

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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.