Home / 21,014.38-31,526.25-9,170.07

Finding the Fourth Proportional to 21,014.38, 31,526.25 and 9,170.07

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Solution

The fourth proportional to 21,014.38, 31,526.25 and 9,170.07 is: 13,757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.38 : 31,526.25 = 9,170.07 : x
  2. Step 2: Convert to fraction form
    21,014.38/31,526.25 = 9,170.07/x
  3. Step 3: Cross multiply
    21,014.38x = 31,526.25 × 9,170.07
  4. Step 4: Simplify right side
    21,014.38x = 289,097,761.71
  5. Step 5: Solve for x
    x = 289,097,761.71/21,014.38
  6. Step 6: Final answer
    x = 13,757.14

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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.