Home / 19,783.48-29,674.45-4,992.21

Finding the Fourth Proportional to 19,783.48, 29,674.45 and 4,992.21

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Solution

The fourth proportional to 19,783.48, 29,674.45 and 4,992.21 is: 7,488.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.48 : 29,674.45 = 4,992.21 : x
  2. Step 2: Convert to fraction form
    19,783.48/29,674.45 = 4,992.21/x
  3. Step 3: Cross multiply
    19,783.48x = 29,674.45 × 4,992.21
  4. Step 4: Simplify right side
    19,783.48x = 148,141,086.03
  5. Step 5: Solve for x
    x = 148,141,086.03/19,783.48
  6. Step 6: Final answer
    x = 7,488.12

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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.