Home / 30,393.48-41,909.94-19,763.40

Finding the Fourth Proportional to 30,393.48, 41,909.94 and 19,763.40

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Solution

The fourth proportional to 30,393.48, 41,909.94 and 19,763.40 is: 27,251.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,393.48 : 41,909.94 = 19,763.40 : x
  2. Step 2: Convert to fraction form
    30,393.48/41,909.94 = 19,763.40/x
  3. Step 3: Cross multiply
    30,393.48x = 41,909.94 × 19,763.40
  4. Step 4: Simplify right side
    30,393.48x = 828,282,908.20
  5. Step 5: Solve for x
    x = 828,282,908.20/30,393.48
  6. Step 6: Final answer
    x = 27,251.99

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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.