Home / 30,505.16-42,097.88-17,076.30

Finding the Fourth Proportional to 30,505.16, 42,097.88 and 17,076.30

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Solution

The fourth proportional to 30,505.16, 42,097.88 and 17,076.30 is: 23,565.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,505.16 : 42,097.88 = 17,076.30 : x
  2. Step 2: Convert to fraction form
    30,505.16/42,097.88 = 17,076.30/x
  3. Step 3: Cross multiply
    30,505.16x = 42,097.88 × 17,076.30
  4. Step 4: Simplify right side
    30,505.16x = 718,876,028.24
  5. Step 5: Solve for x
    x = 718,876,028.24/30,505.16
  6. Step 6: Final answer
    x = 23,565.72

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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.