Home / 28,717.02-39,618.23-21,181.46

Finding the Fourth Proportional to 28,717.02, 39,618.23 and 21,181.46

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Solution

The fourth proportional to 28,717.02, 39,618.23 and 21,181.46 is: 29,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.02 : 39,618.23 = 21,181.46 : x
  2. Step 2: Convert to fraction form
    28,717.02/39,618.23 = 21,181.46/x
  3. Step 3: Cross multiply
    28,717.02x = 39,618.23 × 21,181.46
  4. Step 4: Simplify right side
    28,717.02x = 839,171,650.02
  5. Step 5: Solve for x
    x = 839,171,650.02/28,717.02
  6. Step 6: Final answer
    x = 29,222.10

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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.