Home / 20,044.80-30,059.10-6,890.40

Finding the Fourth Proportional to 20,044.80, 30,059.10 and 6,890.40

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Solution

The fourth proportional to 20,044.80, 30,059.10 and 6,890.40 is: 10,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,044.80 : 30,059.10 = 6,890.40 : x
  2. Step 2: Convert to fraction form
    20,044.80/30,059.10 = 6,890.40/x
  3. Step 3: Cross multiply
    20,044.80x = 30,059.10 × 6,890.40
  4. Step 4: Simplify right side
    20,044.80x = 207,119,222.64
  5. Step 5: Solve for x
    x = 207,119,222.64/20,044.80
  6. Step 6: Final answer
    x = 10,332.82

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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.