Home / 21,055.92-31,577.07-7,012.19

Finding the Fourth Proportional to 21,055.92, 31,577.07 and 7,012.19

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Solution

The fourth proportional to 21,055.92, 31,577.07 and 7,012.19 is: 10,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.92 : 31,577.07 = 7,012.19 : x
  2. Step 2: Convert to fraction form
    21,055.92/31,577.07 = 7,012.19/x
  3. Step 3: Cross multiply
    21,055.92x = 31,577.07 × 7,012.19
  4. Step 4: Simplify right side
    21,055.92x = 221,424,493.43
  5. Step 5: Solve for x
    x = 221,424,493.43/21,055.92
  6. Step 6: Final answer
    x = 10,516.02

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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.