Home / 28,003.02-38,645.20-17,245.71

Finding the Fourth Proportional to 28,003.02, 38,645.20 and 17,245.71

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Solution

The fourth proportional to 28,003.02, 38,645.20 and 17,245.71 is: 23,799.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.02 : 38,645.20 = 17,245.71 : x
  2. Step 2: Convert to fraction form
    28,003.02/38,645.20 = 17,245.71/x
  3. Step 3: Cross multiply
    28,003.02x = 38,645.20 × 17,245.71
  4. Step 4: Simplify right side
    28,003.02x = 666,463,933.65
  5. Step 5: Solve for x
    x = 666,463,933.65/28,003.02
  6. Step 6: Final answer
    x = 23,799.72

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Double scale
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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.