Home / 21,436.29-32,135.28-10,900.41

Finding the Fourth Proportional to 21,436.29, 32,135.28 and 10,900.41

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Solution

The fourth proportional to 21,436.29, 32,135.28 and 10,900.41 is: 16,340.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,436.29 : 32,135.28 = 10,900.41 : x
  2. Step 2: Convert to fraction form
    21,436.29/32,135.28 = 10,900.41/x
  3. Step 3: Cross multiply
    21,436.29x = 32,135.28 × 10,900.41
  4. Step 4: Simplify right side
    21,436.29x = 350,287,727.46
  5. Step 5: Solve for x
    x = 350,287,727.46/21,436.29
  6. Step 6: Final answer
    x = 16,340.87

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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.