Home / 29,886.31-41,225.88-18,688.87

Finding the Fourth Proportional to 29,886.31, 41,225.88 and 18,688.87

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Solution

The fourth proportional to 29,886.31, 41,225.88 and 18,688.87 is: 25,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,886.31 : 41,225.88 = 18,688.87 : x
  2. Step 2: Convert to fraction form
    29,886.31/41,225.88 = 18,688.87/x
  3. Step 3: Cross multiply
    29,886.31x = 41,225.88 × 18,688.87
  4. Step 4: Simplify right side
    29,886.31x = 770,465,111.96
  5. Step 5: Solve for x
    x = 770,465,111.96/29,886.31
  6. Step 6: Final answer
    x = 25,779.87

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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.