Home / 19,780.70-29,675.55-5,929.34

Finding the Fourth Proportional to 19,780.70, 29,675.55 and 5,929.34

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Solution

The fourth proportional to 19,780.70, 29,675.55 and 5,929.34 is: 8,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.70 : 29,675.55 = 5,929.34 : x
  2. Step 2: Convert to fraction form
    19,780.70/29,675.55 = 5,929.34/x
  3. Step 3: Cross multiply
    19,780.70x = 29,675.55 × 5,929.34
  4. Step 4: Simplify right side
    19,780.70x = 175,956,425.64
  5. Step 5: Solve for x
    x = 175,956,425.64/19,780.70
  6. Step 6: Final answer
    x = 8,895.36

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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.