Home / 20,344.63-30,521.61-7,864.76

Finding the Fourth Proportional to 20,344.63, 30,521.61 and 7,864.76

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Solution

The fourth proportional to 20,344.63, 30,521.61 and 7,864.76 is: 11,798.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.63 : 30,521.61 = 7,864.76 : x
  2. Step 2: Convert to fraction form
    20,344.63/30,521.61 = 7,864.76/x
  3. Step 3: Cross multiply
    20,344.63x = 30,521.61 × 7,864.76
  4. Step 4: Simplify right side
    20,344.63x = 240,045,137.46
  5. Step 5: Solve for x
    x = 240,045,137.46/20,344.63
  6. Step 6: Final answer
    x = 11,798.94

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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.