Home / 19,969.16-29,902.49-19,377.90

Finding the Fourth Proportional to 19,969.16, 29,902.49 and 19,377.90

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Solution

The fourth proportional to 19,969.16, 29,902.49 and 19,377.90 is: 29,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,969.16 : 29,902.49 = 19,377.90 : x
  2. Step 2: Convert to fraction form
    19,969.16/29,902.49 = 19,377.90/x
  3. Step 3: Cross multiply
    19,969.16x = 29,902.49 × 19,377.90
  4. Step 4: Simplify right side
    19,969.16x = 579,447,364.08
  5. Step 5: Solve for x
    x = 579,447,364.08/19,969.16
  6. Step 6: Final answer
    x = 29,017.12

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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.