Home / 28,419.84-39,231.12-17,807.04

Finding the Fourth Proportional to 28,419.84, 39,231.12 and 17,807.04

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Solution

The fourth proportional to 28,419.84, 39,231.12 and 17,807.04 is: 24,581.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,419.84 : 39,231.12 = 17,807.04 : x
  2. Step 2: Convert to fraction form
    28,419.84/39,231.12 = 17,807.04/x
  3. Step 3: Cross multiply
    28,419.84x = 39,231.12 × 17,807.04
  4. Step 4: Simplify right side
    28,419.84x = 698,590,123.08
  5. Step 5: Solve for x
    x = 698,590,123.08/28,419.84
  6. Step 6: Final answer
    x = 24,581.07

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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.