Home / 21,426.95-32,145.10-6,433.44

Finding the Fourth Proportional to 21,426.95, 32,145.10 and 6,433.44

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Solution

The fourth proportional to 21,426.95, 32,145.10 and 6,433.44 is: 9,651.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.95 : 32,145.10 = 6,433.44 : x
  2. Step 2: Convert to fraction form
    21,426.95/32,145.10 = 6,433.44/x
  3. Step 3: Cross multiply
    21,426.95x = 32,145.10 × 6,433.44
  4. Step 4: Simplify right side
    21,426.95x = 206,803,652.52
  5. Step 5: Solve for x
    x = 206,803,652.52/21,426.95
  6. Step 6: Final answer
    x = 9,651.57

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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.