Home / 22,791.57-31,454.51-12,720.93

Finding the Fourth Proportional to 22,791.57, 31,454.51 and 12,720.93

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Solution

The fourth proportional to 22,791.57, 31,454.51 and 12,720.93 is: 17,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,791.57 : 31,454.51 = 12,720.93 : x
  2. Step 2: Convert to fraction form
    22,791.57/31,454.51 = 12,720.93/x
  3. Step 3: Cross multiply
    22,791.57x = 31,454.51 × 12,720.93
  4. Step 4: Simplify right side
    22,791.57x = 400,130,556.29
  5. Step 5: Solve for x
    x = 400,130,556.29/22,791.57
  6. Step 6: Final answer
    x = 17,556.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.