Home / 28,220.35-42,332.83-14,173.15

Finding the Fourth Proportional to 28,220.35, 42,332.83 and 14,173.15

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Solution

The fourth proportional to 28,220.35, 42,332.83 and 14,173.15 is: 21,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.35 : 42,332.83 = 14,173.15 : x
  2. Step 2: Convert to fraction form
    28,220.35/42,332.83 = 14,173.15/x
  3. Step 3: Cross multiply
    28,220.35x = 42,332.83 × 14,173.15
  4. Step 4: Simplify right side
    28,220.35x = 599,989,478.65
  5. Step 5: Solve for x
    x = 599,989,478.65/28,220.35
  6. Step 6: Final answer
    x = 21,260.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.