Home / 22,955.13-31,678.08-12,883.57

Finding the Fourth Proportional to 22,955.13, 31,678.08 and 12,883.57

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Solution

The fourth proportional to 22,955.13, 31,678.08 and 12,883.57 is: 17,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,955.13 : 31,678.08 = 12,883.57 : x
  2. Step 2: Convert to fraction form
    22,955.13/31,678.08 = 12,883.57/x
  3. Step 3: Cross multiply
    22,955.13x = 31,678.08 × 12,883.57
  4. Step 4: Simplify right side
    22,955.13x = 408,126,884.30
  5. Step 5: Solve for x
    x = 408,126,884.30/22,955.13
  6. Step 6: Final answer
    x = 17,779.33

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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.