Home / 19,632.40-29,443.20-7,946.80

Finding the Fourth Proportional to 19,632.40, 29,443.20 and 7,946.80

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Solution

The fourth proportional to 19,632.40, 29,443.20 and 7,946.80 is: 11,918.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,632.40 : 29,443.20 = 7,946.80 : x
  2. Step 2: Convert to fraction form
    19,632.40/29,443.20 = 7,946.80/x
  3. Step 3: Cross multiply
    19,632.40x = 29,443.20 × 7,946.80
  4. Step 4: Simplify right side
    19,632.40x = 233,979,221.76
  5. Step 5: Solve for x
    x = 233,979,221.76/19,632.40
  6. Step 6: Final answer
    x = 11,918.01

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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.