Home / 23,167.18-31,970.75-12,556.78

Finding the Fourth Proportional to 23,167.18, 31,970.75 and 12,556.78

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Solution

The fourth proportional to 23,167.18, 31,970.75 and 12,556.78 is: 17,328.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,167.18 : 31,970.75 = 12,556.78 : x
  2. Step 2: Convert to fraction form
    23,167.18/31,970.75 = 12,556.78/x
  3. Step 3: Cross multiply
    23,167.18x = 31,970.75 × 12,556.78
  4. Step 4: Simplify right side
    23,167.18x = 401,449,674.19
  5. Step 5: Solve for x
    x = 401,449,674.19/23,167.18
  6. Step 6: Final answer
    x = 17,328.38

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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.