Home / 31,779.94-43,862.70-18,353.38

Finding the Fourth Proportional to 31,779.94, 43,862.70 and 18,353.38

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Solution

The fourth proportional to 31,779.94, 43,862.70 and 18,353.38 is: 25,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.94 : 43,862.70 = 18,353.38 : x
  2. Step 2: Convert to fraction form
    31,779.94/43,862.70 = 18,353.38/x
  3. Step 3: Cross multiply
    31,779.94x = 43,862.70 × 18,353.38
  4. Step 4: Simplify right side
    31,779.94x = 805,028,800.93
  5. Step 5: Solve for x
    x = 805,028,800.93/31,779.94
  6. Step 6: Final answer
    x = 25,331.35

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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.