Home / 21,363.28-32,187.40-19,285.64

Finding the Fourth Proportional to 21,363.28, 32,187.40 and 19,285.64

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Solution

The fourth proportional to 21,363.28, 32,187.40 and 19,285.64 is: 29,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,363.28 : 32,187.40 = 19,285.64 : x
  2. Step 2: Convert to fraction form
    21,363.28/32,187.40 = 19,285.64/x
  3. Step 3: Cross multiply
    21,363.28x = 32,187.40 × 19,285.64
  4. Step 4: Simplify right side
    21,363.28x = 620,754,608.94
  5. Step 5: Solve for x
    x = 620,754,608.94/21,363.28
  6. Step 6: Final answer
    x = 29,057.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.