Home / 21,710.78-32,571.29-17,285.18

Finding the Fourth Proportional to 21,710.78, 32,571.29 and 17,285.18

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Solution

The fourth proportional to 21,710.78, 32,571.29 and 17,285.18 is: 25,931.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710.78 : 32,571.29 = 17,285.18 : x
  2. Step 2: Convert to fraction form
    21,710.78/32,571.29 = 17,285.18/x
  3. Step 3: Cross multiply
    21,710.78x = 32,571.29 × 17,285.18
  4. Step 4: Simplify right side
    21,710.78x = 563,000,361.20
  5. Step 5: Solve for x
    x = 563,000,361.20/21,710.78
  6. Step 6: Final answer
    x = 25,931.84

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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.