Home / 28,280.64-39,009.34-17,374

Finding the Fourth Proportional to 28,280.64, 39,009.34 and 17,374

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Solution

The fourth proportional to 28,280.64, 39,009.34 and 17,374 is: 23,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280.64 : 39,009.34 = 17,374 : x
  2. Step 2: Convert to fraction form
    28,280.64/39,009.34 = 17,374/x
  3. Step 3: Cross multiply
    28,280.64x = 39,009.34 × 17,374
  4. Step 4: Simplify right side
    28,280.64x = 677,748,273.16
  5. Step 5: Solve for x
    x = 677,748,273.16/28,280.64
  6. Step 6: Final answer
    x = 23,965.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.