Home / 28,828.64-42,960.40-27,889.04

Finding the Fourth Proportional to 28,828.64, 42,960.40 and 27,889.04

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Solution

The fourth proportional to 28,828.64, 42,960.40 and 27,889.04 is: 41,560.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.64 : 42,960.40 = 27,889.04 : x
  2. Step 2: Convert to fraction form
    28,828.64/42,960.40 = 27,889.04/x
  3. Step 3: Cross multiply
    28,828.64x = 42,960.40 × 27,889.04
  4. Step 4: Simplify right side
    28,828.64x = 1,198,124,314.02
  5. Step 5: Solve for x
    x = 1,198,124,314.02/28,828.64
  6. Step 6: Final answer
    x = 41,560.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.