Home / 55,998.04-83,964.18-20,940.40

Finding the Fourth Proportional to 55,998.04, 83,964.18 and 20,940.40

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Solution

The fourth proportional to 55,998.04, 83,964.18 and 20,940.40 is: 31,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,998.04 : 83,964.18 = 20,940.40 : x
  2. Step 2: Convert to fraction form
    55,998.04/83,964.18 = 20,940.40/x
  3. Step 3: Cross multiply
    55,998.04x = 83,964.18 × 20,940.40
  4. Step 4: Simplify right side
    55,998.04x = 1,758,243,514.87
  5. Step 5: Solve for x
    x = 1,758,243,514.87/55,998.04
  6. Step 6: Final answer
    x = 31,398.30

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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.