Home / 28,076.64-38,710.74-17,988.49

Finding the Fourth Proportional to 28,076.64, 38,710.74 and 17,988.49

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Solution

The fourth proportional to 28,076.64, 38,710.74 and 17,988.49 is: 24,801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.64 : 38,710.74 = 17,988.49 : x
  2. Step 2: Convert to fraction form
    28,076.64/38,710.74 = 17,988.49/x
  3. Step 3: Cross multiply
    28,076.64x = 38,710.74 × 17,988.49
  4. Step 4: Simplify right side
    28,076.64x = 696,347,759.38
  5. Step 5: Solve for x
    x = 696,347,759.38/28,076.64
  6. Step 6: Final answer
    x = 24,801.68

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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.