Home / 19,964.20-29,946.30-18,351.40

Finding the Fourth Proportional to 19,964.20, 29,946.30 and 18,351.40

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Solution

The fourth proportional to 19,964.20, 29,946.30 and 18,351.40 is: 27,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.20 : 29,946.30 = 18,351.40 : x
  2. Step 2: Convert to fraction form
    19,964.20/29,946.30 = 18,351.40/x
  3. Step 3: Cross multiply
    19,964.20x = 29,946.30 × 18,351.40
  4. Step 4: Simplify right side
    19,964.20x = 549,556,529.82
  5. Step 5: Solve for x
    x = 549,556,529.82/19,964.20
  6. Step 6: Final answer
    x = 27,527.10

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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.