Home / 19,920.98-29,874.51-5,877.28

Finding the Fourth Proportional to 19,920.98, 29,874.51 and 5,877.28

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Solution

The fourth proportional to 19,920.98, 29,874.51 and 5,877.28 is: 8,813.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.98 : 29,874.51 = 5,877.28 : x
  2. Step 2: Convert to fraction form
    19,920.98/29,874.51 = 5,877.28/x
  3. Step 3: Cross multiply
    19,920.98x = 29,874.51 × 5,877.28
  4. Step 4: Simplify right side
    19,920.98x = 175,580,830.75
  5. Step 5: Solve for x
    x = 175,580,830.75/19,920.98
  6. Step 6: Final answer
    x = 8,813.87

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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.