Home / 21,429.86-32,145.21-6,437.57

Finding the Fourth Proportional to 21,429.86, 32,145.21 and 6,437.57

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Solution

The fourth proportional to 21,429.86, 32,145.21 and 6,437.57 is: 9,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429.86 : 32,145.21 = 6,437.57 : x
  2. Step 2: Convert to fraction form
    21,429.86/32,145.21 = 6,437.57/x
  3. Step 3: Cross multiply
    21,429.86x = 32,145.21 × 6,437.57
  4. Step 4: Simplify right side
    21,429.86x = 206,936,878.81
  5. Step 5: Solve for x
    x = 206,936,878.81/21,429.86
  6. Step 6: Final answer
    x = 9,656.48

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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.