Home / 21,690.21-32,534.91-6,900.15

Finding the Fourth Proportional to 21,690.21, 32,534.91 and 6,900.15

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Solution

The fourth proportional to 21,690.21, 32,534.91 and 6,900.15 is: 10,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.21 : 32,534.91 = 6,900.15 : x
  2. Step 2: Convert to fraction form
    21,690.21/32,534.91 = 6,900.15/x
  3. Step 3: Cross multiply
    21,690.21x = 32,534.91 × 6,900.15
  4. Step 4: Simplify right side
    21,690.21x = 224,495,759.24
  5. Step 5: Solve for x
    x = 224,495,759.24/21,690.21
  6. Step 6: Final answer
    x = 10,350.10

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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.