Home / 20,765.84-31,148.42-9,666.27

Finding the Fourth Proportional to 20,765.84, 31,148.42 and 9,666.27

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Solution

The fourth proportional to 20,765.84, 31,148.42 and 9,666.27 is: 14,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,765.84 : 31,148.42 = 9,666.27 : x
  2. Step 2: Convert to fraction form
    20,765.84/31,148.42 = 9,666.27/x
  3. Step 3: Cross multiply
    20,765.84x = 31,148.42 × 9,666.27
  4. Step 4: Simplify right side
    20,765.84x = 301,088,989.46
  5. Step 5: Solve for x
    x = 301,088,989.46/20,765.84
  6. Step 6: Final answer
    x = 14,499.25

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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.