Home / 21,690.20-32,536.20-6,898.70

Finding the Fourth Proportional to 21,690.20, 32,536.20 and 6,898.70

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Solution

The fourth proportional to 21,690.20, 32,536.20 and 6,898.70 is: 10,348.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.20 : 32,536.20 = 6,898.70 : x
  2. Step 2: Convert to fraction form
    21,690.20/32,536.20 = 6,898.70/x
  3. Step 3: Cross multiply
    21,690.20x = 32,536.20 × 6,898.70
  4. Step 4: Simplify right side
    21,690.20x = 224,457,482.94
  5. Step 5: Solve for x
    x = 224,457,482.94/21,690.20
  6. Step 6: Final answer
    x = 10,348.34

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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.