Home / 28,543.78-39,366.21-17,210.80

Finding the Fourth Proportional to 28,543.78, 39,366.21 and 17,210.80

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Solution

The fourth proportional to 28,543.78, 39,366.21 and 17,210.80 is: 23,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.78 : 39,366.21 = 17,210.80 : x
  2. Step 2: Convert to fraction form
    28,543.78/39,366.21 = 17,210.80/x
  3. Step 3: Cross multiply
    28,543.78x = 39,366.21 × 17,210.80
  4. Step 4: Simplify right side
    28,543.78x = 677,523,967.07
  5. Step 5: Solve for x
    x = 677,523,967.07/28,543.78
  6. Step 6: Final answer
    x = 23,736.31

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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.