Home / 21,571.02-32,356.62-12,813.30

Finding the Fourth Proportional to 21,571.02, 32,356.62 and 12,813.30

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Solution

The fourth proportional to 21,571.02, 32,356.62 and 12,813.30 is: 19,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.02 : 32,356.62 = 12,813.30 : x
  2. Step 2: Convert to fraction form
    21,571.02/32,356.62 = 12,813.30/x
  3. Step 3: Cross multiply
    21,571.02x = 32,356.62 × 12,813.30
  4. Step 4: Simplify right side
    21,571.02x = 414,595,079.05
  5. Step 5: Solve for x
    x = 414,595,079.05/21,571.02
  6. Step 6: Final answer
    x = 19,220.00

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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.