Home / 19,973.16-29,783.52-18,992.12

Finding the Fourth Proportional to 19,973.16, 29,783.52 and 18,992.12

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Solution

The fourth proportional to 19,973.16, 29,783.52 and 18,992.12 is: 28,320.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,973.16 : 29,783.52 = 18,992.12 : x
  2. Step 2: Convert to fraction form
    19,973.16/29,783.52 = 18,992.12/x
  3. Step 3: Cross multiply
    19,973.16x = 29,783.52 × 18,992.12
  4. Step 4: Simplify right side
    19,973.16x = 565,652,185.86
  5. Step 5: Solve for x
    x = 565,652,185.86/19,973.16
  6. Step 6: Final answer
    x = 28,320.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.