Home / 28,578.58-39,457.70-17,839.80

Finding the Fourth Proportional to 28,578.58, 39,457.70 and 17,839.80

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Solution

The fourth proportional to 28,578.58, 39,457.70 and 17,839.80 is: 24,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.58 : 39,457.70 = 17,839.80 : x
  2. Step 2: Convert to fraction form
    28,578.58/39,457.70 = 17,839.80/x
  3. Step 3: Cross multiply
    28,578.58x = 39,457.70 × 17,839.80
  4. Step 4: Simplify right side
    28,578.58x = 703,917,476.46
  5. Step 5: Solve for x
    x = 703,917,476.46/28,578.58
  6. Step 6: Final answer
    x = 24,630.95

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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.