Home / 21,426.12-32,139.18-6,635.17

Finding the Fourth Proportional to 21,426.12, 32,139.18 and 6,635.17

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Solution

The fourth proportional to 21,426.12, 32,139.18 and 6,635.17 is: 9,952.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.12 : 32,139.18 = 6,635.17 : x
  2. Step 2: Convert to fraction form
    21,426.12/32,139.18 = 6,635.17/x
  3. Step 3: Cross multiply
    21,426.12x = 32,139.18 × 6,635.17
  4. Step 4: Simplify right side
    21,426.12x = 213,248,782.35
  5. Step 5: Solve for x
    x = 213,248,782.35/21,426.12
  6. Step 6: Final answer
    x = 9,952.75

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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.