Home / 34,780.45-47,999.40-19,673.12

Finding the Fourth Proportional to 34,780.45, 47,999.40 and 19,673.12

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Solution

The fourth proportional to 34,780.45, 47,999.40 and 19,673.12 is: 27,150.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,780.45 : 47,999.40 = 19,673.12 : x
  2. Step 2: Convert to fraction form
    34,780.45/47,999.40 = 19,673.12/x
  3. Step 3: Cross multiply
    34,780.45x = 47,999.40 × 19,673.12
  4. Step 4: Simplify right side
    34,780.45x = 944,297,956.13
  5. Step 5: Solve for x
    x = 944,297,956.13/34,780.45
  6. Step 6: Final answer
    x = 27,150.25

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1.5x scale

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.