Home / 28,217.79-42,333.74-19,914.02

Finding the Fourth Proportional to 28,217.79, 42,333.74 and 19,914.02

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Solution

The fourth proportional to 28,217.79, 42,333.74 and 19,914.02 is: 29,876.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,217.79 : 42,333.74 = 19,914.02 : x
  2. Step 2: Convert to fraction form
    28,217.79/42,333.74 = 19,914.02/x
  3. Step 3: Cross multiply
    28,217.79x = 42,333.74 × 19,914.02
  4. Step 4: Simplify right side
    28,217.79x = 843,034,633.80
  5. Step 5: Solve for x
    x = 843,034,633.80/28,217.79
  6. Step 6: Final answer
    x = 29,876.00

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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.