Home / 21,428.42-32,141.27-6,636.13

Finding the Fourth Proportional to 21,428.42, 32,141.27 and 6,636.13

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Solution

The fourth proportional to 21,428.42, 32,141.27 and 6,636.13 is: 9,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428.42 : 32,141.27 = 6,636.13 : x
  2. Step 2: Convert to fraction form
    21,428.42/32,141.27 = 6,636.13/x
  3. Step 3: Cross multiply
    21,428.42x = 32,141.27 × 6,636.13
  4. Step 4: Simplify right side
    21,428.42x = 213,293,582.32
  5. Step 5: Solve for x
    x = 213,293,582.32/21,428.42
  6. Step 6: Final answer
    x = 9,953.77

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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.