Home / 20,716.71-31,091.46-9,038.13

Finding the Fourth Proportional to 20,716.71, 31,091.46 and 9,038.13

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Solution

The fourth proportional to 20,716.71, 31,091.46 and 9,038.13 is: 13,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.71 : 31,091.46 = 9,038.13 : x
  2. Step 2: Convert to fraction form
    20,716.71/31,091.46 = 9,038.13/x
  3. Step 3: Cross multiply
    20,716.71x = 31,091.46 × 9,038.13
  4. Step 4: Simplify right side
    20,716.71x = 281,008,657.37
  5. Step 5: Solve for x
    x = 281,008,657.37/20,716.71
  6. Step 6: Final answer
    x = 13,564.35

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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.