Home / 19,798.20-29,680.86-10,432.98

Finding the Fourth Proportional to 19,798.20, 29,680.86 and 10,432.98

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Solution

The fourth proportional to 19,798.20, 29,680.86 and 10,432.98 is: 15,640.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,798.20 : 29,680.86 = 10,432.98 : x
  2. Step 2: Convert to fraction form
    19,798.20/29,680.86 = 10,432.98/x
  3. Step 3: Cross multiply
    19,798.20x = 29,680.86 × 10,432.98
  4. Step 4: Simplify right side
    19,798.20x = 309,659,818.76
  5. Step 5: Solve for x
    x = 309,659,818.76/19,798.20
  6. Step 6: Final answer
    x = 15,640.81

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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.