Home / 22,556.81-31,125.80-12,483.86

Finding the Fourth Proportional to 22,556.81, 31,125.80 and 12,483.86

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Solution

The fourth proportional to 22,556.81, 31,125.80 and 12,483.86 is: 17,226.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,556.81 : 31,125.80 = 12,483.86 : x
  2. Step 2: Convert to fraction form
    22,556.81/31,125.80 = 12,483.86/x
  3. Step 3: Cross multiply
    22,556.81x = 31,125.80 × 12,483.86
  4. Step 4: Simplify right side
    22,556.81x = 388,570,005.17
  5. Step 5: Solve for x
    x = 388,570,005.17/22,556.81
  6. Step 6: Final answer
    x = 17,226.28

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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.