Home / 28,140.96-42,200.88-10,601.28

Finding the Fourth Proportional to 28,140.96, 42,200.88 and 10,601.28

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Solution

The fourth proportional to 28,140.96, 42,200.88 and 10,601.28 is: 15,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.96 : 42,200.88 = 10,601.28 : x
  2. Step 2: Convert to fraction form
    28,140.96/42,200.88 = 10,601.28/x
  3. Step 3: Cross multiply
    28,140.96x = 42,200.88 × 10,601.28
  4. Step 4: Simplify right side
    28,140.96x = 447,383,345.13
  5. Step 5: Solve for x
    x = 447,383,345.13/28,140.96
  6. Step 6: Final answer
    x = 15,897.94

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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.