Home / 20,888.16-31,335.84-11,035.68

Finding the Fourth Proportional to 20,888.16, 31,335.84 and 11,035.68

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Solution

The fourth proportional to 20,888.16, 31,335.84 and 11,035.68 is: 16,555.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.16 : 31,335.84 = 11,035.68 : x
  2. Step 2: Convert to fraction form
    20,888.16/31,335.84 = 11,035.68/x
  3. Step 3: Cross multiply
    20,888.16x = 31,335.84 × 11,035.68
  4. Step 4: Simplify right side
    20,888.16x = 345,812,302.77
  5. Step 5: Solve for x
    x = 345,812,302.77/20,888.16
  6. Step 6: Final answer
    x = 16,555.42

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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.