Home / 28,988.64-39,989.70-17,044.38

Finding the Fourth Proportional to 28,988.64, 39,989.70 and 17,044.38

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Solution

The fourth proportional to 28,988.64, 39,989.70 and 17,044.38 is: 23,512.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.64 : 39,989.70 = 17,044.38 : x
  2. Step 2: Convert to fraction form
    28,988.64/39,989.70 = 17,044.38/x
  3. Step 3: Cross multiply
    28,988.64x = 39,989.70 × 17,044.38
  4. Step 4: Simplify right side
    28,988.64x = 681,599,642.89
  5. Step 5: Solve for x
    x = 681,599,642.89/28,988.64
  6. Step 6: Final answer
    x = 23,512.65

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1.5x scale

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.