Home / 21,066.98-31,577.99-10,516.23

Finding the Fourth Proportional to 21,066.98, 31,577.99 and 10,516.23

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Solution

The fourth proportional to 21,066.98, 31,577.99 and 10,516.23 is: 15,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.98 : 31,577.99 = 10,516.23 : x
  2. Step 2: Convert to fraction form
    21,066.98/31,577.99 = 10,516.23/x
  3. Step 3: Cross multiply
    21,066.98x = 31,577.99 × 10,516.23
  4. Step 4: Simplify right side
    21,066.98x = 332,081,353.20
  5. Step 5: Solve for x
    x = 332,081,353.20/21,066.98
  6. Step 6: Final answer
    x = 15,763.12

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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.